An opening in the abdomen that is created by an operation (ostomy).

The abnormal narrowing of a body opening. Also called stenosis.

A feeling of a continuous need to have a bowel movement. It may be painful and associated with cramps and involuntary straining. It is common in conditions affecting the rectum, such as ulcerative colitis.

A condition of unknown cause producing abnormalities in the lining of the small intestine that prevent the body from absorbing food normally

Condition that occurs when there is a connection between the esophagus and the trachea, or windpipe, causing food and saliva to enter the lungs. It is most often caused by cancer.

The lower end of the small intestine.

When an object is trapped in a body passage. Examples are stones in the bile duct, hardened stool in the colon, or food in the esophagus.

A birth defect in which the anal canal fails to develop. The condition is treated with an operation.

An operation that attaches the small intestine to an opening in the abdomen called a stoma. An ostomy pouch, attached to the stoma and worn outside the body, collects stool.

A condition in which the muscle contraction in the esophagus is too strong, causing chest pain or difficulty swallowing.