Patients can have chronic protracted diarrhea, dysentery (minority), cramping abdominal pain and tenderness. Fever may result from bacterial superinfections. red blood cells, neutrophils, mucus and shreds of necrotic mucosa may be seen in stool specimens.Complications include appendicitis, perforation, hemorrhage, stricture and pseudopolyposis. Chronic irritable colon or postdysenteric colitis may be experienced.