Injury guide

UPDATED FEB 2026

PFAS Ulcerative Colitis Lawsuit

Part of the PFAS Water Contamination investigation

The short answer

Ulcerative colitis — a chronic inflammatory bowel disease — was one of the six conditions designated by the C8 Science Panel as having a probable link to PFOA exposure in the Mid-Ohio Valley study. This is a non-cancer qualifying condition recognized in MDL 2873 personal injury proceedings.

Claimants with PFAS exposure and a confirmed ulcerative colitis diagnosis may have viable claims even without a cancer diagnosis.

People's Justice Research TeamUpdated February 21, 2026Fact-checked

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The C8 Science Panel and Ulcerative Colitis

The C8 Science Panel — the independent scientific body funded by DuPont's 2004 settlement to study the health effects of PFOA exposure in the Mid-Ohio Valley — published its findings in 2012 after studying over 69,000 exposed individuals. The panel designated six conditions as having a 'probable link' to PFOA exposure: kidney cancer, testicular cancer, thyroid disease, ulcerative colitis, high cholesterol, and pregnancy-induced hypertension. Ulcerative colitis was identified based on a statistically significant elevated incidence rate in PFOA-exposed community members compared to unexposed controls, and on biological mechanisms involving PFAS disruption of the intestinal epithelial barrier and immune regulation in the gut. An Emory University study subsequently confirmed the PFAS-ulcerative colitis association in additional cohorts. In MDL 2873, ulcerative colitis is a recognized personal injury category.

What Documentation Is Needed for Ulcerative Colitis PFAS Claims

To file a PFAS ulcerative colitis claim, you need: (1) A confirmed diagnosis of ulcerative colitis by a gastroenterologist, supported by colonoscopy findings and pathology — Crohn's disease and non-specific colitis diagnoses may also be considered but are not as directly tied to the PFAS epidemiological evidence; (2) Documentation of PFAS-contaminated water exposure prior to diagnosis; (3) A medically plausible timeline — UC linked to PFAS exposure should have developed during or after a period of sustained PFAS water consumption. Ulcerative colitis requires ongoing treatment — mesalamine, immunosuppressants, biologics (infliximab, vedolizumab), or in severe cases colectomy — creating substantial lifetime medical damages that support meaningful compensation even in the absence of a cancer diagnosis.

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The full investigation

Part of the PFAS Water Contamination Investigation