See intestines.

Medicines that reduce the amount of acid the stomach. Histamine2 (H2) signals the stomach to make acid.

The set of SNP (single nucliotide polymorphism) alleles along a region of a chromosome. Theoretically there could be many haplotypes in a chromosome region, but recent studies are typically finding only a few common haplotypes.… 

A painful, burning feeling in the chest caused by stomach acid flowing back into the esophagus. Changing the diet and other lifestyle habits can help prevent heartburn. Heartburn may be a symptom of GERD. See… 

A spiral-shaped bacterium found in the stomach. H. pylori damages the stomach and tissue in the first part of the small intestine, causing ulcers.

A disease that occurs when the body absorbs too much iron or receives many blood transfusions. The body stores the excess iron in the liver, pancreas, and other organs and can cause cirrhosis. Also called… 

An operation to remove hemorrhoids.

Swollen blood vessels in and around the anus and lower rectum. Continual straining to have a bowel movement causes them to stretch and swell. They cause itching, pain, and sometimes bleeding.

Refers to the liver.

A condition that may cause loss of consciousness and coma. It is usually the result of advanced liver disease. Also called hepatic encephalopathy.