Causes

Diarrhoea is usually caused by a bowel infection. Other causes can be things like a food allergy, alcohol or appendicitis. If you're taking any medicine, check the side effects. Diarrhoea might be one of them. Conditions that can cause diarrhoea are: irritable bowel syndrome crohn's disease ulcerative colitis coeliac disease diverticular disease chronic pancreatitis bowel cancer stomach cancer
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