Health Blog

Rectal Biopsy

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The rectum is called the lower part of the intestine, about the last 6 inches before the anal aperture. This place can be observed to be the site of tissue outgrowth. A rectal biopsy is performed to identify the cause of blood, mucus, or pus in the stool, determine the causes of tumors, cysts, or masses, and to confirm a diagnosis of amyloidosis. The doctor inserts a thin and flexible tube into the rectum and removes two or three tiny pieces of tissue for further examination.