The rectum is the lower part of the large intestine where the body stores stool. The anus is the opening of the rectum through which stool passes out of the body. Problems with rectum and anus are common. They include hemorrhoids, abscesses, incontinence, and cancer of the rectum or anus.

Many people are embarrassed to talk about anal or rectal troubles. But seeing your doctor about problems in this area is important, especially if you have pain or bleeding. Treatments vary widely depending on the particular problem.

National Institute of Diabetes and Digestive and Kidney Diseases