Health Information Library

Learn about what a HER2-negative breast cancer diagnosis means and how it differs from other types of breast cancer.

A common form of arthritis that causes intense pain, swelling, redness and tenderness in joints.

Learn about this type of breast cancer and how it compares to other types. Find out how subtypes, grades and stages affect prognosis and treatment.

Swelling of the tissues, called tendons, that connect muscle to the bone in the hip joint.

A condition in which the tissue that links muscle to bone becomes inflamed.

A disease that can happen when a person doesn't receive proper treatment for strep throat or scarlet fever.

An imperfection in the eye's curvature.

Decreased moisture in the body.

An infection between the skin and the anus.

Inflammation of or injury to the tube connecting the mouth to the stomach, called the esophagus.

A type of inflammatory bowel disease that affects the lining of the digestive tract.

A breakdown of muscle tissue that releases a damaging protein into the blood.

Ongoing inflammation of all or part of the intestines.

A type of inflammatory bowel disease that causes swelling in the digestive tract.

A condition that affects the rubbery disks between the bones that stack to make the spine.

Swelling and irritation in the arteries in the temples. This also is called giant cell arteritis.

A stretching or tearing of ligaments, the fibrous tissue that connects bones and joints.

A gradual thickening and tightening of tissue under the skin in the hand.

A form of arthritis that affects children.