Uncoordinated contractions down the length of the esophagus that may cause pain or trouble swallowing.

A blockage of the cystic duct, often caused by gallstones.

Loss of fluids from the body, sometimes caused by diarrhea. It may result in the loss of important salts and minerals.

Nerve or muscle damage in the stomach that causes slow emptying, vomiting, nausea, or bloating. Also called delayed gastric emptying.

A skin disorder associated with celiac disease and characterized by severe itching and blisters.

The part of the colon where stool is stored. It is usually located on the left side of the abdomen.

The muscle wall between the chest and the abdomen. It is the major muscle used for breathing.

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… 

Frequent, loose, and watery bowel movements. Common causes include gastrointestinal infections, irritable bowel syndrome, medicines, and malabsorption.

A nutrition expert who helps people plan what and how much food to eat.