What causes ulcerative colitis?
The exact cause of ulcerative colitis is unknown, but some possible causes include: autoimmune conditions (in which your body's immune system accidentally attacks the body's own cells) and genetic conditions (due to mutations in your DNA).
Author: Karen McCloskey
First answered: 23 Sep 2014
Last reviewed: 19 May 2018
Rating: 4.7/5 Votes: 515