Crohn’s disease

5 autoimmune diseases affecting Canadians

Approximately two million Canadians are affected by autoimmune diseases. Find out more about these diseases and know whether or not you're at risk

By Jaclyn Law

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Crohn’s disease

Crohn’s disease involves inflammation in the gastrointestinal tract, and may affect the large or small intestine, rectum or mouth. The causes of Crohn’s are not known, but factors may include genetics and environmental factors. It most often strikes people between the ages of 15 and 35, but it can start at any age. 

The main symptoms include abdominal pain, pain when passing stools, persistent diarrhea, fatigue, fever and weight loss. Additional symptoms include joint pain and swelling, eye inflammation, mouth ulcers, constipation, rectal bleeding and other problems. Treatment helps people with Crohn’s disease manage their condition.