Crohn's Disease

Crohn’s disease is a chronic inflammatory disease of the bowel affecting at least 115,000 people in the UK. The condition usually develops in teenagers and young adults, but can be diagnosed at any age and is equally common in men and women.

What is Crohn's Disease?

Crohn’s disease is a disease that leads to severe inflammation of the lining of the digestive system.

History of Crohn's Disease

Crohn's Disease Complications

Crohn's Disease Symptoms

Crohn's Disease Diagnosis

Intestinal Mycoplasma and Crohn's Disease

Crohn's Disease Cause

Crohn's Disease Treatment

Latest Crohn's Disease News and Research

Researchers identify cellular drivers of gut scarring in Crohn’s disease

As inflamed regions of the gut form scar tissue, the space within the gut lumen becomes smaller and more restricted, leading to symptoms of gut obstruction.

16 Mar 2026

Gut microbiome-produced nicotinic acid protects colon tissue from injury

The gut microbiome-the trillions of bacteria and other microbes that inhabit the gastrointestinal tract-drives a process vital for protecting the colon against tissue injury, according to the findings of a study co-led by Cedars-Sinai Health Sciences University investigators.

10 Mar 2026

New collaboration explores familial inflammatory bowel disease in Saudi Arabia

Mount Sinai and King Saud University Medical City in Riyadh, Saudi Arabia, today announced a three-year collaboration aimed at better understanding why inflammatory bowel disease (IBD) runs in some Saudi families, and how that knowledge can lead to risk ascertainment, earlier diagnosis and more personalized treatment options.

3 Mar 2026

New research initiative aims to predict and prevent diseases before they start

What if doctors could tell you a disease was coming years before you felt a single symptom-and stop it in its tracks? That is the goal of a sweeping new research initiative launched by the Icahn School of Medicine at Mount Sinai in collaboration with the Uniformed Services University of the Health Sciences (USU) and the Henry M. Jackson Foundation for the Advancement of Military Medicine (HJF).

2 Mar 2026

Forecasting disease intensity through genomic risk

Approximately 60,000 Danes live with chronic inflammatory bowel disease. Some experience limited discomfort, while others go through a debilitating disease course involving surgery and a stoma. Add to this the fear of leaving home due to urgent toilet needs.

2 Mar 2026

Dysplasia grade predicts colorectal cancer risk in people with IBD

People with inflammatory bowel disease (IBD) and precancerous colorectal lesions are much more likely to develop colorectal cancer, a new study shows.

16 Feb 2026

Distinct microbial signature identified in pediatric Crohn's disease

NYU researchers have found a "microbial signature" of pediatric Crohn's disease that differs from the makeup of gut bacteria in children with other gastrointestinal conditions, with Crohn's patients harboring more pro-inflammatory bacteria and less protective bacteria.

12 Feb 2026

Time-restricted feeding reduces disease activity and inflammation in Crohn's patients

A new randomized controlled study funded by the Crohn's & Colitis Foundation found that time-restricted feeding-a form of intermittent fasting-significantly reduced symptomatic disease activity and systematic inflammation in adults with Crohn's disease and overweight or obesity.

9 Feb 2026

Research uncovers alternative inflammatory pathway in rheumatoid arthritis treatment

The class of anti-inflammatory drugs known as TNF-inhibitors has brought relief to many sufferers of rheumatoid arthritis, but they don't work for up to 4 of every 10 patients.

30 Jan 2026

Discovery explains why people with IBD have higher risk of colorectal cancer

A chain of immune reactions in the gut—driven by a key signaling protein and a surge of white blood cells from the bone marrow—may help explain why people with inflammatory bowel disease (IBD) have a higher risk of colorectal cancer, according to a preclinical study by Weill Cornell Medicine investigators.

22 Jan 2026

Pregnant individuals with inflammatory bowel disease show heightened vaginal inflammation

Pregnant individuals with inflammatory bowel disease (IBD) have higher levels of pro-inflammatory immune molecules, known as cytokines, in their vaginal mucosa than their healthy counterparts, according to a new study published January 14, 2026 in the open-access journal PLOS One by Ana Maldonado-Contreras of University of Massachusetts Chan Medical School, U.S., and colleagues.

14 Jan 2026

Short-term, calorie-restrictive diet improves Crohn’s disease symptoms

A Stanford Medicine-led study finds a short-term, calorie-restrictive diet significantly improved symptoms.

13 Jan 2026

Blood test opens the doors to early diagnosis and prevention of Crohn's disease

Sinai Health researchers have shown a blood test that can predict Crohn's disease years before symptoms appear, opening the doors to early diagnosis and potentially prevention.

12 Jan 2026

Research points to major healthcare access challenges faced by young adults with IBD

The Crohn's & Colitis Foundation today revealed compelling new research pointing to major healthcare access challenges and financial burdens disproportionately affecting young adults with Inflammatory Bowel Disease (IBD).

6 Jan 2026

Study demonstrates significant changes in gut bacteria at the onset of IBD

Patients experience significant changes in gut bacteria at the onset of inflammatory bowel disease (IBD), a new international study has found - offering new hope for earlier diagnosis and future treatments.

23 Dec 2025

How ultra-processed foods shape Crohn’s disease risk and what dietary strategies can really help

This narrative review synthesizes evidence showing that higher intake of ultra-processed foods is consistently associated with increased Crohn’s disease risk, with mechanistic pathways implicating emulsifiers, carrageenan, maltodextrin, titanium dioxide, sweeteners and salt. It also highlights that minimally processed dietary strategies, including EEN and CDED, show therapeutic promise, particularly in pediatric Crohn’s disease.

11 Dec 2025