Medical and health subreddits
We found 161 active medical and health subreddits: communities with at least one new post a day on average in September 2026, ranked by members. The largest is r/Health with 3.61M members. The busiest is r/AskDocs, with 15,752 posts last month. In 37 of the 153 we could measure, a brand-new account's post usually stays up: they remove 17% or fewer of posts from accounts under a week old.
Data for 161 communitiesDownload CSV
Filter it by your account age and karma, the audience you want and the best time to post.
- r/Health3.61M members
- r/AskDocs15,752 posts in September 2026
- r/Perimenopause+82% members in 12 months
- r/Posture14% of new-account posts removed
All active medical and health subreddits, by members
| # | Subreddit | Members | Posts / month | Member growth, 12 mo | Median author age | Women | Posts with a reply | New-account posts removed | Links |
|---|---|---|---|---|---|---|---|---|---|
| 1 | r/Health↗Health, a science-based community to discuss human health | 3.61M | 725 | +1% | 34 | 36% | 30% | 100% | Yes |
| 2 | r/acne↗A subreddit for discussing acne and how to best treat it. | 1.75M | 1,173 | +1% | 23 | 70% | 76% | Min. age/karma | Yes |
| 3 | r/nursing↗Nursing for nurses and by nurses for the care of all. | 1.15M | 3,047 | +6% | 30 | 61% | 86% | 78% | Yes |
| 4 | r/Biohackers↗Welcome to r/Biohackers. This community is designed for individuals interested in DIY biology, sometimes referred to as biohacking. It focuses on DIY biology, Pharmacology, and Grinding techniques. | 919K | 1,938 | +38% | 35 | 34% | 100% | Min. age/karma | Yes |
| 5 | r/AskDocs↗Having a medical issue? Ask a doctor or medical professional on Reddit! All flaired medical professionals on this subreddit are verified by the mods. | 834K | 15,752 | +14% | 25 | 52% | 100% | 36% | Yes |
| 6 | r/sleep↗Insomnia, sleep apnea, nightmares, shift work and everyday sleep trouble. Share what helps, ask questions, and help others sleep better. | 710K | 1,652 | +9% | 26 | 44% | 70% | 33% | Yes |
| 7 | r/popping↗Subreddit for popping addicts and the pop-curious. Blackheads, pimples, cysts, abscesses, and more. | 652K | 545 | +7% | 30 | 49% | 95% | Min. age/karma | Yes |
| 8 | r/medicine↗r/medicine is a virtual lounge for physicians and other medical professionals from around the world to talk about the latest advances, controversies, ask questions of each other, have a laugh, or shar | 571K | 847 | +8% | 29 | 42% | 59% | 100% | No |
| 9 | r/tressless↗Tressless.com (*tress·less*, without hair) is the most popular website and community for everyone coping with hair loss. Feel free to discuss remedies, research, technologies, hair transplants, hair s | 562K | 3,483 | +20% | 26 | 13% | 93% | Min. age/karma | Yes |
| 10 | r/Posture↗new-account friendlyThe best subreddit for users with a slight lean, slope, or a hunch here and there. | 465K | 620 | +4% | 27 | 39% | 59% | 14% | Yes |
| 11 | r/PlasticSurgery↗new-account friendlyWelcome to r/PlasticSurgery! This subreddit is a general hub for discussion, before and after posts, stories, experiences, and general information about cosmetic/plastic surgeries. A core principle | 383K | 2,836 | +18% | 28 | 81% | 63% | 12% | Yes |
| 12 | r/medizzy↗This is subreddit created for medical professionals who want to discuss amazing medical cases, watch useful medical videos and share inspiring pictures. All about Medicine!!! | 383K | 73 | +3% | 29 | 38% | 85% | 100% | Yes |
| 13 | r/indianmedschool↗A community for Indian Medical Students and Practitioners of Modern Medicine (under- and post-graduates) to discuss and share their opinions, tips, study recommendations, memes, and to help upcoming M | 373K | 6,455 | +15% | 23 | 36% | 81% | 94% | Yes |
| 14 | r/vaxxhappened↗The original pro vaccine subreddit shining a light on Anti-Vaxxers on all forms of media. Post screenshots, articles and anecdotes. Anti-Vaxxers: Check out Rule Two | 345K | 33 | 0% | 27 | 36% | 77% | – | Yes |
| 15 | r/PCOS↗A place to discuss Polycystic Ovarian Syndrome and all that comes along with it. This sub is a safe space for LGBTQ2A+ folks. | 319K | 1,730 | +26% | 27 | 95% | 77% | 74% | No |
| 16 | r/Residency↗Welcome to the Residency subreddit, a community of interns and residents who are just trying to make it through training! This is a subreddit specifically for interns and residents to get together a | 296K | 1,081 | +10% | 30 | 47% | 71% | 96% | Yes |
| 17 | r/Testosterone↗This subreddit is for questions and discussion related to testosterone replacement therapy and testosterone. It also focuses on lifestyle activities like exercise and nutrition for raising testosteron | 248K | 2,136 | +21% | 31 | 7% | 93% | 96% | Yes |
| 18 | r/Healthyhooha↗We are an inclusive, supportive community where individuals with vaginas/vulvas, however they may identify, can come to seek advice and support for vaginal health. This sub does not take the place of | 241K | 2,001 | +30% | 27 | 92% | 82% | 50% | Yes |
| 19 | r/Zepbound↗A safe place for questions, experiences, tips and tricks, for Zepbound and a helpful community to assist you along your weightloss journey! ZEPBOUND is a glucose-dependent insulinotropic polypeptide | 240K | 3,213 | +47% | 39 | 74% | 95% | Min. age/karma | Yes |
| 20 | r/migraine↗A community of headache disease sufferers. Whether migraines, cluster headaches, or whatever head pain you experience. We support each other, and spread knowledge about our various conditions. | 235K | 1,976 | +25% | 30 | 74% | 84% | Min. age/karma | Yes |
| 21 | r/Menopause↗'menopause isn't really that bad'... said no woman ever. | 231K | 1,153 | +27% | 48 | 95% | 64% | 95% | No |
| 22 | r/bigboobproblems↗A supportive and welcoming space for people who have big boobs to discuss the challenges and frustrations that come with them. This community is full of knowledgeable members who offer helpful advice, | 217K | 497 | +15% | 28 | 84% | 100% | 93% | Yes |
| 23 | r/herbalism↗A friendly place to discuss herbs, herbology and talk with other herbalists! | 208K | 478 | +14% | 32 | 66% | 80% | Min. age/karma | Yes |
| 24 | r/Mounjaro↗Questions, experiences and accomplishments related to Mounjaro and Zepbound prescription medications. | 208K | 1,327 | +32% | 38 | 73% | 79% | 97% | Yes |
| 25 | r/Semaglutide↗Discussion of FDA-approved semaglutide (Wegovy/Ozempic/Rybelsus). No discussion of compounded formulations. | 206K | 576 | +32% | 37 | 77% | 91% | 28% | Yes |
| 26 | r/WomensHealth↗A Q&A space for women and those assigned female at birth (AFAB). We advocate evidence-based, trauma-informed medicine globally. If looking for doctor recommendations please use a local area sub. | 205K | 2,236 | +29% | 26 | 95% | 75% | 84% | No |
| 27 | r/birthcontrol↗new-account friendlyA place to discuss birth control methods. | 202K | 2,393 | +14% | 24 | 93% | 100% | 9% | No |
| 28 | r/insomnia↗Posts and discussion about insomnia and sleep disorders. | 200K | 1,241 | +19% | 28 | 53% | 73% | 36% | No |
| 29 | r/Semenretention↗*PLEASE READ THIS AND CLICK ON EACH DROP DOWN RULE BEFORE POSTING ANYTHING TO AVOID A BAN* Welcome brothers. SR is an ancient practice used by a small percentage of the male population worldwide. | 187K | 1,171 | +15% | 25 | 6% | 89% | 96% | Yes |
| 30 | r/Psychiatry↗We're a community created for psychiatrists and others in the mental health field to come together and discuss our field. We are not a subreddit to ask psychiatrists questions either about individual | 184K | 589 | +14% | 28 | 50% | 98% | Min. age/karma | Yes |
Show all 161 subreddits
| # | Subreddit | Members | Posts / month | Member growth, 12 mo | Median author age | Women | Posts with a reply | New-account posts removed | Links |
|---|---|---|---|---|---|---|---|---|---|
| 31 | r/ChronicPain↗For the broken, malfunctioning, pained people of the world and their friends/family. Got pain? This is the place to be. Bitching, complaining, whining, and otherwise venting about your condition is en | 176K | 1,320 | +25% | 31 | 65% | 76% | Min. age/karma | Yes |
| 32 | r/evilautism↗The place where we evilly collect special interests and rub textures without mercy. | 173K | 1,770 | +25% | 27 | 48% | 91% | 62% | Yes |
| 33 | r/ibs↗ibs: it's a pain | 171K | 1,122 | +16% | 28 | 63% | 88% | 78% | No |
| 34 | r/Perimenopause↗Perimenopause. In our playground we have giant mood swings and emotional roller coasters...buckle up! | 170K | 1,965 | +82% | 44 | 96% | 66% | 87% | No |
| 35 | r/diabetes↗For humans living with diabetes: discussion, issues, and news. | 170K | 892 | +13% | 31 | 44% | 86% | 64% | Yes |
| 36 | r/Dentistry↗Discussions and links of interest for dental professionals on all things dentistry. Questions and stories from patients should be redirected to r/askdentists. | 167K | 720 | +9% | 25 | 47% | 90% | 94% | Yes |
| 37 | r/DermatologyQuestions↗**Welcome to /r/DermatologyQuestions!** Got a rash, bump, or skin concern? Ask here. Get support and insights from the community. Please remember, this is not a substitute for professional medical | 163K | 7,067 | +40% | 26 | 61% | 50% | 29% | Yes |
| 38 | r/PMDD↗A science based sub for PMDD. Premenstrual dysphoric disorder (PMDD) is a menstrual-related affective disorder (MRAD). It is not the same as premenstrual syndrome (PMS) or PME (premenstrual exacerbati | 162K | 1,494 | +25% | 30 | 95% | 87% | Min. age/karma | Yes |
| 39 | r/medical_advice↗Welcome to r/medical_advice! Advice given on this sub does not constitute professional medical advice. The circumstances do not mimic those of a review by a health professional. Advice is therefore me | 153K | 630 | +8% | 23 | 53% | 100% | 84% | Yes |
| 40 | r/endometriosis↗This is a place for anyone who suffers from endometriosis or related conditions, or suspects that they may do. The vast majority of our users are endo patients and this is predominantly a space desi | 148K | 2,496 | +34% | 29 | 95% | 72% | 81% | No |
| 41 | r/emergencymedicine↗/r/emergencymedicine is a subreddit for healthcare providers in the emergency setting to discuss their encounters and find ways to improve their knowledge of various parts of EM. | 145K | 480 | +14% | 33 | 51% | 83% | 30% | Yes |
| 42 | r/eczema↗new-account friendly A place for people with eczema to talk with others about their experiences, treatments, coping methods, and life with eczema. | 144K | 869 | +20% | 27 | 67% | 79% | 7% | Yes |
| 43 | r/COVID19positive↗A safe space for people who are affected by SARS-CoV-2. Share your stories, experiences, answer questions and vent! | 142K | 170 | +1% | 30 | 60% | 82% | – | No |
| 44 | r/Invisalign↗Welcome to our community dedicated to supporting those on their Invisalign journey! *We also welcome users of other aligner brands, but please avoid advertising and follow the rules | 138K | 970 | +18% | 29 | 68% | 83% | Min. age/karma | Yes |
| 45 | r/POTS↗Postural Orthostatic Tachycardia Syndrome (POTS) is a form of dysautonomia that is estimated to impact between 1,000,000 and 3,000,000 Americans, and millions more around the world. POTS is a form of | 135K | 1,855 | +32% | 27 | 81% | 87% | Min. age/karma | No |
| 46 | r/neurodiversity↗A place for the social and political discussion of neurological and psychological differences. We are proud members of the Neurodiversity Movement, which is also a part of the Disability Rights Moveme | 132K | 641 | +22% | 28 | 64% | 72% | Min. age/karma | Yes |
| 47 | r/askdentists↗new-account friendlyDo you have any dental questions to ask or stories to share? Ask a dental professional! | 131K | 5,636 | +48% | 26 | 57% | 100% | 10% | No |
| 48 | r/GERD↗A subreddit for people with the condition know as Gastroesophageal reflux disease (GERD). | 126K | 904 | +18% | 29 | 53% | 72% | Min. age/karma | No |
| 49 | r/ehlersdanlos↗This is a support sub for those with Ehlers-Danlos syndrome (all types) and HSD—diagnosed or waiting to be diagnosed. This is a welcoming place for those affected (or those simply wanting to learn mor | 124K | 975 | +29% | 29 | 82% | 89% | Min. age/karma | Yes |
| 50 | r/Fibromyalgia↗An optimistic but realistic support group. | 123K | 905 | +29% | 31 | 77% | 80% | 68% | No |
| 51 | r/malelifestyle↗The community of interest for man at his best. | 122K | 53 | +4% | 30 | 6% | 72% | 46% | Yes |
| 52 | r/Rosacea↗new-account friendlyr/Rosacea is a patient support community for those diagnosed with Rosacea, a medical disorder of the facial skin and sometimes the eyes. Diagnosing rosacea takes a pro; if you think you might have som | 122K | 741 | +29% | 32 | 81% | 84% | 11% | Yes |
| 53 | r/lexapro↗A community for those prescribed Lexapro or Cipralex, also known as Escitalopram. Please be positive and supportive. If you are feeling suicidal call 1-800-273-8255. If you need emergency medical a | 122K | 1,216 | +16% | 28 | 63% | 83% | 46% | Yes |
| 54 | r/redlighttherapy↗Red Light Therapy ( LLLT ) . Share your experiences. Do not ask for or take any information on this subreddit as medical advice. Brand recommendations check www.redlightpicks.com or search. | 121K | 247 | +75% | 36 | 69% | 68% | 67% | Yes |
| 55 | r/earrumblersassemble↗A subreddit for those who can control their Tensor Tympani muscle. | 119K | 94 | +10% | 26 | 33% | 75% | – | Yes |
| 56 | r/FemaleHairLoss↗For women who have experienced hair loss for any reason to come together, discuss hair loss, share their experiences, and seek support. Please read Community Info before posting. | 118K | 1,130 | +42% | 29 | 92% | 84% | 96% | Yes |
| 57 | r/AutisticWithADHD↗Community for autistic people with ADHD to ask advice, vent about your day, share stories, infodump on your special interests and most importantly: be yourself. | 116K | 992 | +40% | 30 | 61% | 88% | 22% | Yes |
| 58 | r/Periods↗new-account friendlyThis is a subreddit to talk about all things related to that special time in a lady's life when she really starts to hate everything about it! Disclaimer: This subreddit is not a substitute for a heal | 116K | 1,391 | +18% | 23 | 94% | 68% | 14% | Yes |
| 59 | r/ChronicIllness↗ A place of support for those living with, or affected by, chronic illness. Open and welcoming to all. This subreddit is for social and community support, not medical advice. If you need help pleas | 115K | 1,517 | +28% | 28 | 80% | 74% | 99% | Yes |
| 60 | r/zoloft↗A community for people taking Zoloft (sertraline) to discuss questions, concerns, and success stories. Zoloft is an antidepressant and anti-anxiety medication in the pharmaceutical class SSRI. | 113K | 1,850 | +19% | 27 | 66% | 71% | 67% | Yes |
| 61 | r/disability↗News, resources, and perspectives pertaining to individuals with disabilities. | 113K | 783 | +29% | 30 | 63% | 34% | Min. age/karma | Yes |
| 62 | r/healthcare↗Healthcare: systems, costs, problems and proposed solutions. | 112K | 928 | +13% | 28 | 47% | 68% | 99% | Yes |
| 63 | r/Accutane↗new-account friendlyPLEASE READ RULES BEFORE POSTING! For those who are on the road to curing their acne once and for all. This subreddit is meant for discussions about progress, side-effects, and the like. | 112K | 1,080 | +16% | 23 | 63% | 100% | 12% | Yes |
| 64 | r/Celiac↗All things related to living with celiac disease/coeliac disease. | 109K | 1,190 | +26% | 30 | 68% | 94% | 85% | Yes |
| 65 | r/Endo↗This community aims to support all people affected by and interested in endometriosis. We pride ourselves on being a friendly, inclusive place, where patients and loved ones alike can discuss thoughts | 108K | 1,047 | +23% | 29 | 95% | 75% | 71% | Yes |
| 66 | r/IVF↗A supportive and positive community to discuss your IVF journey. Please be sensitive and kind. | 104K | 3,391 | +40% | 35 | 88% | 79% | 67% | No |
| 67 | r/AuDHDWomen↗new-account friendlyA safe space for those who identify as both Autistic and having ADHD - self-diagnosed, clinically assessed or questioning. Everyone who doesn't identify as a cis man is welcome, including non-binary, | 100K | 1,956 | +77% | 32 | 92% | 79% | 4% | Yes |
| 68 | r/SleepApnea↗Welcome to r/SleepApnea! This subreddit is a place for people living with sleep apnea — and those supporting them — to share experiences, ask questions, and learn from each other. | 99K | 942 | +26% | 33 | 37% | 75% | 27% | Yes |
| 69 | r/cancer↗R/Cancer is a place for people with cancer to support each other. Caregivers who are asking specific questions about side effects are also welcome. Please see R/CancerFamilySupport or R/CaregiverSuppo | 95K | 942 | +19% | 30 | 56% | 52% | 97% | Yes |
| 70 | r/massage↗/r/massage is a community for respectful discussions of massage and massage therapists/practitioners. We'd like for this to be a great place for patients and clients to ask questions and for therapis | 92K | 686 | +23% | 34 | 52% | 35% | 99% | Yes |
| 71 | r/Epilepsy↗The mission of r/epilepsy is to provide a community forum for people who are affected by epilepsy. We exist to share ideas about the direction of epilepsy research, available treatment options for all | 92K | 1,941 | +39% | 28 | 59% | 90% | 52% | No |
| 72 | r/abortion↗If you're pregnant and don't want to be, we can help you get an abortion. This is a pro-abortion, stigma-free space to ask questions, get information, and share your experiences. | 90K | 1,463 | +24% | 25 | 92% | 100% | 19% | No |
| 73 | r/covidlonghaulers↗A community for individuals suffering from the effects of COVID-19 longer than the estimated 4 weeks, also known as PACS, PASC, and Long Covid. | 89K | 794 | +22% | 32 | 56% | 78% | 99% | Yes |
| 74 | r/PostureTipsGuide↗Maintain a good posture is an essential part of our life. You will get helpful posture tips, guide, research, and information. | 89K | 60 | +4% | 27 | 33% | 56% | Min. age/karma | Yes |
| 75 | r/CrohnsDisease↗This community provides words of encouragement, comfort, and support for people with all forms of IBD, as well as their friends & family! This place is not a substitute for doctor's advice. We cannot | 89K | 961 | +18% | 29 | 53% | 97% | 18% | No |
| 76 | r/cfs↗For research, treatments, and personal stories regarding Myalgic Encephalomyelitis (ME)/Chronic Fatigue Syndrome (CFS). ME/CFS is a multi-systemic neurological disease, distinct from chronic fatigue | 88K | 1,692 | +35% | 31 | 64% | 91% | 61% | Yes |
| 77 | r/CPAP↗new-account friendlyWe're a community that is centred around the most common treatment modality for sleep apnea, CPAP. We're here to support and help each other. | 88K | 882 | +29% | 38 | 32% | 95% | 10% | Yes |
| 78 | r/Hypothyroidism↗new-account friendlyDevoted to the education, treatment, and healing of all forms of hypothyroidism. | 87K | 618 | +18% | 30 | 76% | 78% | 7% | No |
| 79 | r/diabetes_t1↗We're a forum for the discussion of Type 1 diabetes including treatment, research, moral support, rants, diabetes technology and CGM graphs. | 87K | 1,011 | +20% | 29 | 48% | 81% | 51% | Yes |
| 80 | r/backpain↗Creating a space for people to ask questions about their back pain (whether acute or chronic), giving meaning, and providing hope for those suffering. This is a place that does not tolerate misinforma | 85K | 763 | +36% | 30 | 47% | 100% | Min. age/karma | Yes |
| 81 | r/orthotropics↗In this subreddit we discuss topics related to Orthotropics and Mewing with regards to humans of all ages. Orthotropics is about promoting healthy craniofacial development by natural or low-invasive | 85K | 419 | +12% | 21 | 34% | 21% | 98% | Yes |
| 82 | r/PaMedicalMarijuana↗All things in Pennsylvania Medical Marijuana - Reviews, News & Friendly Discussions For All | 83K | 417 | +13% | 31 | 33% | 86% | 79% | Yes |
| 83 | r/Dermatology↗The Dermatology Subreddit for Medical Professionals. (This is not the place to ask for personal medical advice) | 82K | 416 | +7% | 26 | 56% | 100% | 99% | Yes |
| 84 | r/Hashimotos↗new-account friendlyThis subreddit does not constitute health advice. | 82K | 664 | +30% | 32 | 83% | 84% | 16% | Yes |
| 85 | r/MultipleSclerosis↗Focusing on issues facing people with MS and their family and friends. Conversations about support, research, drug therapies, nutrition, exercise, and more. | 81K | 865 | +20% | 32 | 63% | 92% | 86% | No |
| 86 | r/dysautonomia↗Dysautonomia is an umbrella term for conditions in which the autonomic nervous system malfunctions. | 81K | 697 | +26% | 30 | 77% | 88% | Min. age/karma | No |
| 87 | r/TMJ↗new-account friendlyA place for TMJD sufferers to share their fears, worries, stories and successes. We are not Drs. We cannot diagnose you. If you are concerned please see a Dr rather than consult the internet! No ad | 81K | 548 | +21% | 28 | 67% | 74% | 14% | Yes |
| 88 | r/FamilyMedicine↗Welcome to r/FamilyMedicine, an online community of physicians and eternal learners to share topics & discussions in the field of FM. Read the sidebar rules to participate. | 81K | 459 | +17% | 34 | 56% | 54% | Min. age/karma | Yes |
| 89 | r/tinnitus↗r/tinnitus is a place for community help and general discussion about tinnitus. Share your experiences with others who can relate. Tinnitus is the hearing of sound when no external sound is present. | 78K | 524 | +20% | 29 | 32% | 89% | Min. age/karma | Yes |
| 90 | r/anesthesiology↗Anesthesiology: Keeping Patients Safe, Asleep, and Comfortable. Subreddit for the medical specialty dedicated to perioperative medicine, pain management, and critical care medicine. | 77K | 332 | +25% | 32 | 40% | 73% | 98% | Yes |
| 91 | r/Psoriasis↗A help forum about all matters relating to psoriasis. Whether it's relating anecdotes for support, giving advice, or looking for help, all posts welcome. Important: This sub does not offer professiona | 77K | 399 | +18% | 30 | 55% | 100% | 22% | Yes |
| 92 | r/braces↗Welcome to /r/braces! A support group for questions and discussion on the topic of braces! Please note that this sub is for patients, so you won't always find professional help here. Please read the | 75K | 1,062 | +20% | 23 | 64% | 71% | 95% | Yes |
| 93 | r/VyvanseADHD↗A support subreddit dedicated to the discussion of Vyvanse (aka Elvanse / Lisdexamfetamine) for the treatment of ADHD. This is a space to share experiences with this medication and gain support and | 75K | 1,065 | +44% | 30 | 62% | 77% | 34% | Yes |
| 94 | r/DiagnoseMe↗The Internet's walk-in clinic. Because going to a doctor would be too expensive. | 75K | 2,520 | +30% | 25 | 56% | 46% | 18% | Yes |
| 95 | r/Allergies↗A commonplace for discussion, news, advice and questions with fellow allergy sufferers. Beware of the profanity filter if your posts/comments don't show up. | 74K | 694 | +22% | 29 | 64% | 67% | Min. age/karma | No |
| 96 | r/Mewing↗new-account friendlyAnything and everything related to mewing. Read the rules BEFORE posting. | 74K | 398 | +13% | 20 | 25% | 66% | 11% | Yes |
| 97 | r/SebDerm↗Welcome to r/SebDerm A community for anyone dealing with Seborrheic Dermatitis: sharing experiences, treatments, routines, research, and support. Whether you’re newly diagnosed or managing long-term | 73K | 530 | +25% | 28 | 51% | 91% | 71% | Yes |
| 98 | r/Noctor↗This sub is intended as a repository of sources and a place of discussion regarding independent and inappropriate midlevel practice. It is designed to highlight the differences between a medical doct | 72K | 156 | +10% | 31 | 50% | 97% | Min. age/karma | Yes |
| 99 | r/Sleepparalysis↗Discussion and support for the science of sleep paralysis. | 72K | 259 | +7% | 24 | 51% | 72% | 54% | No |
| 100 | r/Hyperhidrosis↗new-account friendlyHyperhidrosis is the condition in which you sweat in an excessive amount in a particular area of the body. The usual areas of hyperhidrosis are: * Hands (Palmer Hyperhidrosis) * Feet (Plantar Hyper | 71K | 503 | +22% | 27 | 51% | 76% | 16% | Yes |
| 101 | r/Hairloss↗Hairloss forum and subreddit. For all things about hair loss. | 70K | 900 | +14% | 23 | 18% | 98% | 80% | Yes |
| 102 | r/bupropion↗new-account friendlyr/bupropion is a global resource hub focused on information about bupropion, aka Wellbutrin / Voxra / Zyban. This is community run, not medical professionals. | 70K | 679 | +28% | 30 | 64% | 90% | 2% | Yes |
| 103 | r/Hidradenitis↗This subreddit is a community of people who suffer from Hidradenitis Suppurativa. This group seeks to help others cope with this difficult illness, ease their pain and suffering, provide a space for t | 70K | 552 | +23% | 28 | 79% | 91% | 35% | Yes |
| 104 | r/dementia↗This subreddit is dedicated to information and support for people dealing with dementia. Dementia patients and their families suffer in silence and we hope this forum can be a place where we can all c | 69K | 980 | +37% | 36 | 69% | 80% | 56% | Yes |
| 105 | r/Cholesterol↗Welcome to r/Cholesterol! Please read the sticky for general rules before posting. Many questions can be answered in this subreddits wiki, link as a button on the main page, or within the sticky ne | 69K | 621 | +45% | 35 | 45% | 92% | Min. age/karma | Yes |
| 106 | r/compoundedtirzepatide↗Community solely focused for those looking into, using, or have previously used prescription compounded tirzepatide. Disclaimer: This subreddit was initially created by Emerge so that there would be | 68K | 1,464 | +188% | 41 | 79% | 77% | 85% | Yes |
| 107 | r/Sciatica↗new-account friendlyThe sciatica subreddit is the internet's largest community to find support, share stories (successful or otherwise!), and learn more about the challenging medical condition of radiculopathy. | 66K | 701 | +26% | 32 | 47% | 79% | 5% | Yes |
| 108 | r/infertility↗Welcome to /r/infertility, a fantastic community that exists for shitty reasons. We're here for everyone, of all genders, who are dealing with primary or secondary infertility, social infertility, pre | 66K | 256 | +11% | 33 | 91% | 84% | 98% | No |
| 109 | r/autismmemes↗new-account friendlyMeme for people with Autism spectrum disorder | 65K | 147 | +13% | 26 | 51% | 82% | 11% | Yes |
| 110 | r/EmergencyRoom↗***This sub is NOT for asking medical advice or for making pejorative comments about Healthcare Workers. Posts violating these rules will be removed immediately and subject to temporary and/or permane | 65K | 93 | +18% | 38 | 73% | 82% | 37% | Yes |
| 111 | r/jawsurgery↗For anyone who is interested in, about to go through, or has already gone through orthognathic surgery. Check out the sticky threads for some general information. | 65K | 1,956 | +36% | 25 | 53% | 100% | 60% | Yes |
| 112 | r/erectiledysfunction↗Erectile Dysfunction (ED) is the inability to achieve or maintain an erection. This is a peer based support group for men, and their partners. Oral medications, injections and other alternatives ar | 64K | 720 | +36% | 30 | 11% | 70% | 72% | Yes |
| 113 | r/PimplePoppersDelight↗Pimple Poppers Delight The Original. | 64K | 30 | +11% | 33 | 60% | 64% | – | Yes |
| 114 | r/MedicalCannabisOz↗G’day and welcome to Medical Cannabis Oz! Here we explore the Australian legal medicinal cannabis market and share patient experiences and resources. Expect discussions, reviews, questions, personal | 63K | 482 | +24% | 32 | 30% | 100% | 93% | Yes |
| 115 | r/VetTech↗/r/VetTech is a place for veterinary support staff to chat, share and grow. Please check the sidebar for CE and answers to common questions! Pet owners are welcome to ask NON-MEDICAL questions. As | 63K | 273 | +6% | 28 | 80% | 98% | 100% | Yes |
| 116 | r/Wellbutrin_Bupropion↗new-account friendlyWellbutrin -Bupropion , all things related to this antidepressant. Zyban. Norepinephrine–dopamine reuptake inhibitor (NDRI) , major depressive disorder, atypical antidepressant , Epileptic seizures | 63K | 559 | +24% | 30 | 71% | 68% | 11% | Yes |
| 117 | r/prozac↗new-account friendlyA supportive community for individuals prescribed Prozac (Fluoxetine), dedicated to sharing experiences, asking questions, and connecting with others in a safe and welcoming environment. | 63K | 892 | +28% | 27 | 70% | 100% | 13% | No |
| 118 | r/TherapeuticKetamine↗A place for patients and healthcare providers to discuss the use of prescription ketamine treatments. | 62K | 324 | +19% | 35 | 55% | 98% | 73% | Yes |
| 119 | r/PelvicFloor↗This is a subreddit to raise awareness and offer support for people with PFD and chronic pelvic pain/dysfunction Pelvic floor dysfunction refers to a wide range of issues that occur when muscles of | 62K | 804 | +40% | 29 | 52% | 75% | 66% | No |
| 120 | r/TopSurgery↗new-account friendlyThis subreddit is for posts about top surgery. Images, discussion, questions, advice, et cetera. Reminder: all genders can have top surgery, it isn't just for trans men! Top surgery content allowed | 62K | 1,489 | +29% | 23 | 41% | 100% | 5% | Yes |
| 121 | r/UlcerativeColitis↗This subreddit is a place for people with ulcerative colitis (UC) and their loved ones to discuss and learn about UC and related topics. We welcome all members, regardless of their experience with UC. | 61K | 761 | +21% | 29 | 52% | 99% | 56% | Yes |
| 122 | r/SIBO↗new-account friendlyA subreddit dedicated to Small Intestinal Bacterial Overgrowth. | 61K | 975 | +35% | 31 | 59% | 77% | 10% | Yes |
| 123 | r/diabetes_t2↗This sub is for discussion on Type 2 Diabetes. Make sure you check out /r/diabetes for general diabetes information too! For those that are Freestyle Libre users or interested in it you can check out | 60K | 344 | +21% | 38 | 54% | 83% | 100% | Yes |
| 124 | r/MCAS↗new-account friendlyA science-focused sub for Mast Cell Activation Disorders. Please note: The content on this subreddit is not intended as, and is not a substitute for, medical advice or diagnosis. It must not be int | 59K | 1,181 | +59% | 33 | 77% | 100% | 13% | Yes |
| 125 | r/DentalHygiene↗This sub is a place for Dental Hygienists, Dental Hygiene students, and the general public to ask questions and comment about dental hygiene. Dental hygiene is a broad topic so we are pretty lenient o | 59K | 615 | +32% | 25 | 60% | 34% | 99% | Yes |
| 126 | r/lupus↗This is a space for those Living with Lupus to Connect, Share Experiences, Build Support, and Create Community. Those who have other autoimmune conditions or loved ones of those with Lupus are welcome | 59K | 424 | +22% | 30 | 82% | 92% | 99% | Yes |
| 127 | r/hysterectomy↗new-account friendlyPost your questions and hysterectomy stories here. We are here to support you and help you heal. | 57K | 1,270 | +40% | 37 | 95% | 84% | 11% | Yes |
| 128 | r/Type1Diabetes↗Please be respectful and helpful if responding to posts. This is a place where people can come and learn about Type 1 and the challenges we face. A place to rant, show emotion, and ask insulin questio | 57K | 694 | +20% | 29 | 54% | 78% | 44% | Yes |
| 129 | r/breastcancer↗r/breastcancer is a support and information group for people who have been diagnosed with breast cancer. | 56K | 1,550 | +41% | 38 | 86% | 93% | 92% | Yes |
| 130 | r/vaginismus↗This subreddit is for those who suffer or have suffered from vaginismus. We are a community offering support, advice, laughs, and a haven when you need to talk about the struggles. . Partners and | 56K | 455 | +25% | 25 | 89% | 99% | 86% | Yes |
| 131 | r/Herpes↗new-account friendlyHello, r/Herpes is open and welcomes you. This group is a resource for people living with Herpes. We encourage everyone, patients and professionals, to have a dialogue here about advocacy, cure, trea | 55K | 1,425 | +25% | 26 | 62% | 87% | 11% | No |
| 132 | r/foreskin_restoration↗A place to proactively and positively discuss Foreskin Restoration. Newcomers please visit our Wiki (in the Menu tab on mobile) and do some research before introducing yourself in a post. | 55K | 530 | +23% | 27 | 10% | 95% | 87% | Yes |
| 133 | r/menstrualcups↗A community for the curious, the experienced, and the newbies with menstrual cups and discs. Advice and user experiences for everyone to share. | 55K | 157 | +6% | 26 | 97% | 83% | 17% | Yes |
| 134 | r/Asthma↗new-account friendlyReddit's asthma forum. | 54K | 480 | +17% | 29 | 60% | 88% | 14% | Yes |
| 135 | r/optometry↗A subreddit for eyecare professionals to discuss relevant topics in the field! This is not a subreddit for patient or prescription questions. | 54K | 314 | +13% | 26 | 46% | 100% | 100% | Yes |
| 136 | r/GutHealth↗For research & discussion about gut / microbiome health. | 53K | 508 | +43% | 30 | 60% | 57% | 38% | Yes |
| 137 | r/LockdownSkepticism↗Interdisciplinary examination of lockdowns & other pandemic policies. We acknowledge the threat of COVID-19. We are also concerned about the policies' impact on our physical & mental health, human rig | 53K | 37 | +1% | 31 | 29% | 88% | – | Yes |
| 138 | r/ACL↗new-account friendlyAnterior Cruciate Ligament injuries: Stories, Tips, and Advice for recovery | 53K | 982 | +28% | 28 | 43% | 82% | 4% | Yes |
| 139 | r/SuperMorbidlyObese↗A Subreddit for people who are currently (or have been) SMO and are looking to lose weight and lead a healthier life. | 53K | 155 | +10% | 32 | 74% | 89% | 67% | No |
| 140 | r/surgery↗READ THE RULES BEFORE POSTING. r/surgery is a lounge where medical professionals and students can discuss the art and science of surgery. It is a virtual "Surgery Staff Lounge" where doctors and surg | 53K | 95 | +11% | 29 | 48% | 89% | 98% | Yes |
| 141 | r/pinoymed↗This is a virtual lounge for doctors practicing in the Philippines. Please review the subreddit rules before posting. | 52K | 786 | +25% | 27 | 65% | 56% | Min. age/karma | Yes |
| 142 | r/Anemic↗new-account friendlyA subreddit dedicated to sufferers of any kind of Anemia. Anything anemic related can be discussed here, whether it’s questions, support, or advice. Kindness and manners are required, along with the m | 52K | 1,324 | +63% | 31 | 86% | 79% | 11% | Yes |
| 143 | r/Gastritis↗A community for discussing gastritis and diseases related to gastritis (e.g. ulcers, functional dyspepsia). Sharing treatments, cures, causes, news, case studies, medical articles, and personal experi | 52K | 707 | +27% | 29 | 59% | 100% | 41% | No |
| 144 | r/EMDR↗new-account friendlyWelcome to r/EMDR, a safe & supportive community for discussing Eye Movement Desensitization and Reprocessing therapy. EMDR helps with trauma, anxiety, depression, PTSD & more. Check our Wiki for info | 51K | 305 | +23% | 32 | 77% | 95% | 9% | Yes |
| 145 | r/prediabetes↗new-account friendlyWelcome to our prediabetes support group. Whether you are diagnosed, trying to avoid the diagnosis, or seeking dietary advice, we're here to help. Join us with a positive mindset, and a commitment to | 51K | 373 | +56% | 34 | 63% | 81% | 10% | Yes |
| 146 | r/ARFID↗new-account friendlyA place to discuss ARFID (avoidant-restrictive food intake disorder,) and related anxiety, express frustration, share tips, news, and help others gain an understanding of what this diagnosis encompass | 51K | 384 | +21% | 25 | 76% | 87% | 5% | Yes |
| 147 | r/gastricsleeve↗new-account friendlyA place for those who have undergone a Vertical Gastric Sleeve and those interested in the procedure to share tips, personal experiences, and receive support. | 51K | 492 | +14% | 33 | 74% | 90% | 3% | Yes |
| 148 | r/EKGs↗We are the home of EKG professionals, amateurs, and anyone else in healthcare that is interested in interpreting EKGs. | 50K | 119 | +5% | 29 | 38% | 79% | 96% | Yes |
| 149 | r/deaf↗There are many distinct Deaf communities around the world, which communicate using different sign languages and exhibit different cultural norms. Deaf identity also intersects with other kinds of cult | 50K | 230 | +12% | 27 | 57% | 90% | 20% | Yes |
| 150 | r/H5N1_AvianFlu↗A place where we can monitor the avian flu outbreak, and discuss how to prepare | 50K | 37 | +2% | 37 | 49% | 33% | – | Yes |
| 151 | r/PlantarFasciitis↗Plantar fasciitis is a common foot condition characterized by inflammation of the plantar fascia, a thick band of tissue that runs across the bottom of the foot, connecting the heel bone to the toes. | 49K | 195 | +37% | 35 | 59% | 76% | 57% | Yes |
| 152 | r/Chiropractic↗This subreddit is for sharing and discussing chiropractic news, the profession, and care. | 48K | 152 | +6% | 29 | 41% | 74% | Min. age/karma | Yes |
| 153 | r/bpc_157↗BPC-157 Research And Support Sub | 48K | 115 | +159% | 35 | 26% | 42% | Min. age/karma | No |
| 154 | r/gallbladders↗new-account friendlyWelcome to Gallbladders! This subreddit is for people having gallbladder trouble, preparing for gallbladder removal, have had surgery, discuss diet or a place to discuss managing gallbladder disease s | 48K | 882 | +35% | 31 | 74% | 83% | 7% | No |
| 155 | r/Hypermobility↗new-account friendlyWelcome to /r/Hypermobility, a supportive and empowering community for individuals on the clinical joint hypermobility spectrum! Whether you've been formally diagnosed with a hypermobility syndrome | 48K | 474 | +63% | 30 | 82% | 83% | 2% | No |
| 156 | r/AcneScars↗A community to exchange support and personal insights on scars & scar healing, treatment options, research, and more. | 47K | 660 | +30% | 26 | 61% | 82% | Min. age/karma | Yes |
| 157 | r/ChurchOfCOVID↗This community is a safe space for everyone who religiously adheres to the tenets of the Church of COVID™. Members must follow all revelations and dictates from our prophet The Holy Dr. Anthony Fauci | 47K | 92 | +2% | 32 | 21% | 57% | 76% | Yes |
| 158 | r/Narcolepsy↗new-account friendlyThe online community for those who either have Narcolepsy or Idiopathic Hypersomnia or have a family member with one of these diagnoses. We are not here to diagnose or confirm your self-diagnosis. We | 46K | 604 | +20% | 28 | 70% | 87% | 7% | Yes |
| 159 | r/TirzepatideRX↗new-account friendlyTirzepatide can be a life-changing medication. This subreddit is dedicated to discussing all topics related to tirzepatide. Tell us your experiences, your questions, your concerns, and help others out | 46K | 850 | +143% | 42 | 78% | 81% | 6% | Yes |
| 160 | r/dexcom↗new-account friendlyWe're an unofficial subreddit about everything Dexcom. Come here to troubleshoot problems with your CGM, seek advice and comfort from fellow diabetics, or ask any general questions regarding diabetes. | 46K | 283 | +14% | 35 | 44% | 87% | 12% | Yes |
| 161 | r/NursingStudents↗A place where we can come together as a community and help one another | 46K | 437 | +18% | 26 | 75% | 22% | 52% | Yes |
Looking for a ranking by size and growth? Top medical and health subreddits by tier.
How this list is built
Subreddits are grouped into topics by what their posts are about; this list holds the medical and health group. We include subreddits that are safe for work and had at least 30 new posts in September 2026, about one a day.
Members is Reddit's subscriber count; growth compares it with a year earlier. Posts with a reply is the share of posts that got at least one comment over the last three months. Median author age and women are estimated from what authors say about themselves, and shown only when enough of them did. New-account posts removed is the share of posts from accounts younger than 7 days that were removed; communities at or below 17% are marked new-account friendly. Min. age/karma means the subreddit asks for a minimum account age or karma before you can post.
The list is rebuilt every month from public Reddit posts and comments. Data and CSV are free to reuse under CC BY 4.0 with a link to this page.
Medical and health subreddits: common questions
What is the biggest medical and health subreddit?
r/Health, with 3.61M members in September 2026. Next are r/acne (1.75M) and r/nursing (1.15M).
Which medical and health subreddits are the most active?
By posts in September 2026: r/AskDocs (15,752 posts), r/DermatologyQuestions (7,067 posts) and r/indianmedschool (6,455 posts).
Which medical and health subreddits can a new account post in?
r/Posture (14% of new-account posts removed), r/PlasticSurgery (12% of new-account posts removed) and r/birthcontrol (9% of new-account posts removed). They ask for no minimum karma or account age, and most posts from accounts under a week old stay up.
How often is this list updated?
Every month, when we rebuild our subreddit data. This version uses data for September 2026. Member counts come from Reddit; activity, removals and who writes come from public Reddit posts and comments.
Find the subreddits that fit your post
This list is the same for everyone. Find Subs narrows it to communities your account can post in, where your audience writes, and tells you when to post.