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Hidradenitis suppurativa

Compared within 1 study that had both: 59 people with hidradenitis suppurativa and 30 healthy people. 1 genus is less common in people with hidradenitis suppurativa, and 4 more common.

A difference is an association: it doesn’t mean these genera cause, prevent or treat hidradenitis suppurativa. GMrepo reports this group at the genus level only, so these are genera, not species.

Phylum

Searching opens both lists and shows only matching rows.

Less common in hidradenitis suppurativa · 1

Strongest first, then the biggest gap · Each figure is 10 people Strongest first · Each figure is 10 people
  1. Coprococcus genus in 1 study Healthy 87% hidradenitis suppurativa 54%

More common in hidradenitis suppurativa · 4

Strongest first, then the biggest gap · Each figure is 10 people Strongest first · Each figure is 10 people
  1. Sellimonas genus in 1 study Healthy 0% hidradenitis suppurativa 31%
  2. Eggerthella genus in 1 study Healthy 3.3% hidradenitis suppurativa 39%
  3. Thomasclavelia genus in 1 study Healthy 10% hidradenitis suppurativa 53%
  4. Mediterraneibacter genus in 1 study Healthy 53% hidradenitis suppurativa 85%

Where these numbers come from

Studies
Only GMrepo projects that had people with the condition and healthy people, 10 or more of each. Numbers come from those studies, never from pooling.Sampled in Ireland.
How common
The share of people whose sample has any of it, in the people with the condition and in the healthy people of those same studies. Tested within studies (Cochran–Mantel–Haenszel, corrected for testing many microbes); a difference counts when it is clear and meaningful (Cohen’s h of 0.2 or more).
Strength word
Counted by code from how many studies point the same way: Seen again and again (3 or more, none clearly the other way), Seen more than once (2, the majority), Seen once (1, listed last). Where studies disagree, a row isn’t listed.
Each study
Tap a row for every study’s own numbers, and for how much carriers have.
Analysis
Our analysis of GMrepo data. GMrepo on Data sources · Read the rules

Also compared · 60 genera

Compared within studies that had both, but not listed above.

No meaningful difference · 60
PubMed · human studies and reviews first

Recent research

All research on it
  1. Systematic review Experimental dermatology · 2026
    The Emerging Role of Gut Microbiota in Inflammatory Skin Diseases: A Systematic Review.
    PubMed ↗
  2. Observational Archives of dermatological research · 2025
    Roles of skin microbiota in hidradenitis suppurativa: insights from a two-sample mendelian randomization analysis.
    PubMed ↗
  3. Review Journal of cutaneous medicine and surgery · 2024
    Hidradenitis Suppurativa from a Multi-Omic Scope.
    PubMed ↗
  4. Observational The Journal of investigative dermatology · 2021
    Altered Skin and Gut Microbiome in Hidradenitis Suppurativa.
    PubMed ↗

Source: PubMed, U.S. National Library of Medicine · 4 linked papers, last 10 years