(stomach disorder) A non-neoplastic or neoplastic disorder that affects the stomach. Representative examples of non-neoplastic disorders include gastritis and gastric ulcer. Representative examples of neoplastic disorders include adenomas, carcinomas, and lymphomas.

(stomach disorder) Condition in which there is a deviation from or interruption of the normal structure or function of the stomach.

Pathological processes involving the STOMACH.

(stomach disorders) Your stomach is an organ between your esophagus and small intestine. It is where digestion of protein begins. The stomach has three tasks. It stores swallowed food. It mixes the food with stomach acids. Then it sends the mixture on to the small intestine. Most people have a problem with their stomach at one time or another. Indigestion and heartburn are common problems. You can relieve some stomach problems with over-the-counter medicines and lifestyle changes, such as avoiding fatty foods or eating more slowly. Other problems like peptic ulcers or GERD require medical attention. You should see a doctor if you have any of the following: Blood when you have a bowel movement; Severe abdominal pain; Heartburn not relieved by antacids; Unintended weight loss; Ongoing vomiting or diarrhea. NIH: National Institute of Diabetes and Digestive and Kidney Diseases