Causes of blood in a bowel movement include hemorrhoids, an anal fissure, an anal abscess, diverticulitis and inflammatory bowel disease, according to Cleveland Clinic. The color of the blood helps determine where the bl... More »

Possible causes of bloody bowel movements include anal fissures, diverticular disease, petptic ulcers, esophageal disorders and angiodysplacia, according to WebMD. Polyps and cancer also sometimes cause bloody stools, al... More » Health Conditions & Diseases Gastrointestinal Issues

Changes in bowel movements, such as diarrhea or constipation, that last more than a few days are symptoms of bowel cancer. Narrow, thin stools; rectal bleeding; dark stools or bloody stools; cramping and pain in the abdo... More »

Causes of rectal bleeding include hemorrhoids, inflammatory bowel disease, anal fissures, and anal or colon cancer, states Healthline. Crohn's disease, chronic constipation, radiation therapy and diarrhea can also cause ... More » Health Pain & Symptoms

Causes of left-sided abdominal pain in men include constipation, diverticulitis, gas and inflammatory bowel disease, according to doctors at HealthTap. Constipation occurs when bowel movements become less frequent or mor... More »

Red- or black-colored stool may indicate intestinal bleeding resulting from an anal fissure, hemorrhoids, non-cancerous polyps or colon cancer, notes A blocked bile duct can cause white- or clay-colored stool,... More » Health Pain & Symptoms

Common bowel problems include celiac disease, diverticulitis, intestinal obstruction, structural abnormalities of the bowel and inflammatory bowel disease. Other bowel problems are infections, irritable bowel syndrome an... More » Health Conditions & Diseases Gastrointestinal Issues