Health Information Library

Swelling, called inflammation, in the muscles.

A serious illness caused by a virus spread in the saliva of infected animals.

A heart condition present at birth in which an extra heart-signaling pathway causes a rapid heartbeat.

Blue or gray color of the skin, nails, lips, tongue or gums

Inflammation of the large intestine.

The most common form of cancer of the thyroid, a butterfly-shaped gland in the neck.

A cancer in the butterfly-shaped gland at the base of the neck, called the thyroid.

A cancer that affects the body's germ- and disease-fighting system, also called the lymphatic system.

A tumor that develops in the uterus as a result of a nonviable pregnancy.

One of a group of disorders that cause red blood cells to become misshapen and break down.

A rare and serious condition in which the body stops making enough new blood cells.

Pain that travels along the path of the sciatic nerve, which runs down each leg from the lower back.

A condition in which a child inherits the sickle cell gene mutation from only one parent.

Linked to aging, this condition causes the prostate gland to get bigger and cause trouble with urinating.

Cancer that starts in the soft tissue.

A hole in the wall between the heart's upper chambers that's present at birth.

A fluid-filled sac around a testicle, often first noticed as swelling of the scrotum.

Bleeding from the nose is a common symptom that often is not a true health problem.

A group of cancers of the mouth, sinuses, nose, or throat.

Cancer that affects the body's germ- and disease-fighting system, also called the lymphatic system.