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r/Parasitology↗

A community for anyone interested in the things that live on and in you.

77k subscribers138 posts / mo in Sep 2026117 authors / mosince 2010

r/Parasitology has 77k members (+9.9% over the last 12 months). It gets about 138 posts a month from 117 people. Top topics: SushiFishGuide, Cat Health Issues and FishHealthIssues.

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When to post on r/Parasitology

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Size and growth

How r/Parasitology has grown

r/Parasitology

Subscriber growth

Subscribers over time

+9.9%in 12 months · +1.7% in 3 months · +0.2% in 1 month
Oct 202677k
Growing77k subscribers
Data since Mar 2018Live · through Oct 2026
r/Parasitology

Monthly activity

Posts, comments and authors per month

−32%vs Sep 2025 · +4.1% last 3 months vs the 3 before
Sep 2026138
QuieterPeaked at 305 in Jan 2025
Data through Sep 2026 · October usually lands mid-November

What people talk about

Topics and brands on r/Parasitology

Top topics

Share of the subreddit's posts

  1. SushiFishGuide1.4%
  2. Cat Health Issues1.4%
  3. FishHealthIssues1.3%
  4. Worms and Parasites1.1%
  5. Skin Concerns1.0%

Brands people mention

Most-mentioned brands and sites, last 12 months

  1. CDC
  2. Nature
  3. ScienceDirect
  4. Wolfram
  5. ResearchGate

The full report

Everything else about r/Parasitology

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