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r/microbiology↗

Microbiology

The study of microscopic eukaryotes, fungi, protists, prokaryotes, viruses, and prions.

203k subscribers252 posts / mo in Sep 2026190 authors / mosince 2008

r/microbiology has 203k members (+13% over the last 12 months). It gets about 252 posts a month from 190 people. Top topics: Antibiotic Resistance, Gut Microbiome Health and Biotech CareerAdvice.

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When to post on r/microbiology

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Size and growth

How r/microbiology has grown

r/microbiology

Subscriber growth

Subscribers over time

+13%in 12 months · +2.3% in 3 months · +0.5% in 1 month
Oct 2026203k
Growing203k subscribers
Data since Mar 2018Live · through Oct 2026
r/microbiology

Monthly activity

Posts, comments and authors per month

−37%vs Sep 2025 · −30% last 3 months vs the 3 before
Sep 2026252
QuieterPeaked at 635 in Nov 2024
Data through Sep 2026 · October usually lands mid-November

What people talk about

Topics and brands on r/microbiology

Top topics

Share of the subreddit's posts

  1. Antibiotic Resistance1.9%
  2. Gut Microbiome Health1.7%
  3. Biotech CareerAdvice1.0%
  4. Fungi Identification0.5%
  5. Biology Exams & Papers0.4%

Brands people mention

Most-mentioned brands and sites, last 12 months

  1. ScienceDirect
  2. Libsyn
  3. ASM
  4. CDC
  5. Doi

The full report

Everything else about r/microbiology

Posting rules and account requirements, how often posts get removed, who writes here (age, gender, countries), what people ask for, how they talk, and related subreddits — all in the full report.

Posts and activity for Sep 2026. Members from Reddit's subscriber counts. Read from the same data the app runs on. Our research