In-depth

Anal fissure

An anal fissure is a tear in the lining of the anal canal that may cause pain and bleeding. It's often due to constipation.

Anal itching

Anal itching is a common, sometimes embarrassing condition. Fortunately, treatment usually brings complete relief.

Anemia

Anemia occurs in many forms, but all involve a shortage of healthy red blood cells. Treatment depends on what's causing your anemia.

Carcinoid tumors

Carcinoid tumors are rare, slow-growing cancerous tumors that most often occur in the gastrointestinal tract or in the lungs.

Chronic constipation

Chronic constipation can cause bloating and abdominal discomfort.

Clear liquid diet

Learn which foods are allowed and which foods to avoid.

Colon cancer

Colon cancer and rectal cancer combined are the second-leading cause of cancer-related deaths in the United States. Regular screening tests can help reduce your risk.

Colon polyps

Colon polyps — small clumps of cells on your colon lining — are usually harmless, but some may become cancerous over time.

Constipation in children

Constipation in children is common. Often, simple changes in diet and routine are helpful.

Crohn's disease

Crohn's disease is a form of inflammatory bowel disease (IBD) — a serious inflammation of the digestive tract that can cause abdominal pain and diarrhea.

Hemorrhoids

Though uncomfortable and sometimes embarrassing, hemorrhoids — and the accompanying itching and bleeding — are common. Effective treatments are available and mostly involve lifestyle and home remedies.

Inflammatory bowel disease (IBD)

Inflammatory bowel disease can be painful and debilitating, and it can cause life-threatening complications. Find out more about treating this digestive system disorder.

Intestinal ischemia

Intestinal ischemia occurs when the blood supply to your digestive system is reduced. Abdominal pain is a common symptom. Several treatment options are available.

Iron deficiency anemia

Iron deficiency anemia may leave you feeling sapped of energy. This condition is especially common in women. Iron supplements usually help.

Irritable bowel syndrome

Irritable bowel syndrome (IBS) is a digestive disorder that can cause abdominal pain, gas, diarrhea and constipation. Eating more fiber and exercising can help.

Ischemic colitis

Ischemic colitis is a disorder in which the colon becomes inflamed, usually due to a disruption of blood flow.

Lynch syndrome

Lynch syndrome, an uncommon disorder caused by genetic defects, predisposes a person to develop colon cancer and other forms of cancer.

Proctitis

Proctitis is an inflammation of the lining of the rectum.

Pseudomembranous colitis

Pseudomembranous colitis is an inflammation of the colon that occurs most often in people using antibiotics.

Rectovaginal fistula

Rectovaginal fistula — Comprehensive overview explains treatment of this complication due to childbirth, Crohn's disease, cancer or other causes.

Ulcerative colitis

Ulcerative colitis is a form of inflammatory bowel disease (IBD) — a serious inflammation of the digestive tract that can cause abdominal pain and diarrhea.

Jun. 18, 2011