Rectal cancer - Definition

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The rectum is the final segment of the colon. It is the area in which stools are stored until elimination through defecation. Rectal cancer leads to the appearance of tumors (growths) in the rectal area. It is generally secondary to a polyp or benign tumor. Rectal cancer has symptoms such as constipation or diarrhea, a sensation of heaviness, vomiting, and a constant need to have a bowel movement. These signs may be accompanied by abdominal pain and a varying amount of blood present in stools.