Patients with IBD face elevated risk of psychiatric disorders

· Medical Xpress

by American Gastroenterological Association

edited by Sadie Harley, reviewed by Alexander Pol

Sadie Harley

Scientific Editor

Meet our editorial team
Behind our editorial process

Alexander Pol

Deputy Editor

Meet our editorial team
Behind our editorial process Editors' notes

This article has been reviewed according to Science X's editorial process and policies. Editors have highlighted the following attributes while ensuring the content's credibility:

fact-checked

peer-reviewed publication

trusted source

proofread

The GIST Add as preferred source

Credit: Pixabay/CC0 Public Domain

Patients with inflammatory bowel disease (IBD) face a significantly higher risk of psychiatric disorders starting two to three years before diagnosis and lasting up to a decade afterward, according to a nationwide study published in Clinical Gastroenterology and Hepatology.

Researchers analyzed more than 40,000 IBD patients in Sweden between 2007 and 2023, comparing them with nearly 180,000 people from the general population and 26,000 IBD-free full siblings.

Mental health risks peaked shortly after diagnosis and remained elevated long term. This held even when patients were compared directly with their IBD-free full siblings, indicating that shared family genetics or early environmental factors alone do not explain the link.

IBD—which includes Crohn's disease and ulcerative colitis—is a lifelong condition that causes chronic inflammation in the digestive tract. Because it affects daily physical comfort and social functioning, its impact extends beyond gut health.

Scientists suspect the connection may involve a protracted disease course, disrupted gut-brain axis communication, reduced social functioning, impaired quality of life and shared genetic factors.

"It is time to actively manage psychiatric conditions in patients with IBD," said lead author Jiangwei Sun, Ph.D.

A new study found that patients with inflammatory bowel disease (IBD) were at an increased risk of several psychiatric disorders two to three years before IBD diagnosis and up to 10 years after. Credit: CGH

Key takeaways:

  • Timeline of risk: Risk of psychiatric illness rises two to three years before IBD diagnosis, peaks within the first six months (a 50% increase) and stays elevated at 10 years (a 19% increase).
  • Main conditions: The risk increase was largely driven by major depressive disorder, anxiety disorders and substance misuse.
  • Drug prescriptions: Prescriptions for antidepressants and anxiolytics increased a year before diagnosis and remained elevated for at least five years after diagnosis.
  • Impact across subtypes: Results were consistent across Crohn's disease, ulcerative colitis and unclassified IBD, with absolute risks highest in patients with childhood-onset IBD and those with a family history of psychiatric conditions.

While anxiety and depression are recognized as the most common mental health challenges in IBD patients, previous research focused almost exclusively on the years following diagnosis. By highlighting the critical, previously understudied years leading up to an IBD diagnosis, this study shows how unaddressed mental health issues can complicate medical management, worsen flare-ups and lower quality of life.

Researchers urge health care providers to screen for psychiatric symptoms early—starting during the initial GI evaluation—and call for integrating psychological care directly into routine IBD management.

Publication details

Psychiatric disorders before and after inflammatory bowel disease diagnosis: a nationwide cohort study in Sweden 2007-2023, Clinical Gastroenterology and Hepatology (2026). DOI: 10.1016/j.cgh.2026.05.034

Journal information: Clinical Gastroenterology and Hepatology

Key medical concepts

Inflammatory Bowel DiseasesMental DisordersMajor Depressive DisorderAnxiety Disorders

Clinical categories

PsychiatryGastroenterologyPsychology & Mental healthDigestive healthCommon illnesses & Prevention Provided by American Gastroenterological Association Who's behind this story?

Sadie Harley

BSc Life Sciences & Ecology. Microbiology lab background with pharmaceutical news experience in oil, gas, and renewable industries. Full profile →

Alexander Pol

PhD nano-engineering from Delft University. Published researcher and journal reviewer. Brings scientific insight to content standards. Full profile →

Citation: Patients with IBD face elevated risk of psychiatric disorders (2026, August 5) retrieved 5 August 2026 from https://medicalxpress.com/news/2026-08-patients-ibd-elevated-psychiatric-disorders.html This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.