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Intestinal polyps

Compared within 1 study that had both: 30 people with intestinal polyps and 30 healthy people. 1 microbe is less common in people with intestinal polyps, and 1 more common.

A difference is an association: it doesn’t mean these microbes cause, prevent or treat intestinal polyps.

Phylum

Searching opens both lists and shows only matching rows.

Less common in intestinal polyps · 1

Strongest first, then the biggest gap · Each figure is 10 people Strongest first · Each figure is 10 people
  1. Anaeromassilibacillus senegalensis in 1 study Healthy 73% intestinal polyps 30%

More common in intestinal polyps · 1

Strongest first, then the biggest gap · Each figure is 10 people Strongest first · Each figure is 10 people
  1. Burkholderia sp. 4M9327F10 in 1 study Healthy 30% intestinal polyps 70%

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 Spain.
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 · 272 microbes

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

No meaningful difference · 272
PubMed · human studies and reviews first

Recent research

All research on it
  1. The Turkish journal of gastroenterology · 2025
    Causal Relationship Between Gut Microbiota and Gastrointestinal Polyps: A Mendelian Randomization Study.
    PubMed ↗
  2. Journal of applied microbiology · 2017
    A metagenomic study of the preventive effect of Lactobacillus rhamnosus GG on intestinal polyp formation in ApcMin/+ mice.
    PubMed ↗

Source: PubMed, U.S. National Library of Medicine · 2 linked papers, last 10 years