Lipoma is the second most common benign tumor of the colon. It often exists without symptoms. But when abdominal pain, partial obstruction, changes in bowel habits with constipation, or alternating diarrhea and constipation, anemia, a palpable abdominal mass, or rarely, rectal bleeding and intussusceptions-appear, patients with lipomas suffer from physical stress. The purpose of this paper is to present three cases of lipoma of the colon with unusual symptoms.