Medical Encyclopedia lists several possible causes of the nonspecific symptom of abdominal pain.

Read about common conditions and illness of the gut and bowel. Includes resources on ulcers, constipation, gallstones and nausea.

Foundation presents such conditions as bowel cancer, constipation, gallstones, indigestion and ulcers to patients.

Contains images and videos of gastrointestinal video endoscopy, and an atlas of diseases detected such as gastric cancer and colon cancer.

Hosted by the American Academy of Family Physicians. Discuses family health and gastrointestinal diseases.

Australian page offers a map of the digestive system on which users can click to learn more information.

Support organization for those with Hirschsprung's disease and motility disorders. Features news, articles and resources.

Categorized list of resources on digestive-system diseases, including common gastrointestinal problems.

Forum dealing with various forms of abdominal pain includes related news and updates, doctor's responses, and related medical procedures.

Guide features a description of excrement, its chemical components and its use in researching diseases.

Informative resource for the public, patients and health-care providers. Browse health articles and frequently asked questions.

National Inst. of Diabetes and Digestive and Kidney Diseases presents digestive disorders. Includes clinical trials and education programs.

UK antacid manufacturer explains how antacids work, gives recipe tips, and includes downloads and freebies.

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