How does iron-deficiency anemia frequently develop with ulcerative colitis?

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Ulcerative colitis often causes chronic inflammation and ulceration in the colon and rectum, leading to blood loss in stools, which can result in iron-deficiency anemia. Other causes of anemia in ulcerative colitis may include malabsorption due to inflammation in the intestines or medications used to control the disease, but chronic blood loss is the most common reason.

How Does Iron-Deficiency Anemia Frequently Develop with Ulcerative Colitis