Health Information Library

Progressive loss of hair from the scalp beyond usual hair loss of less than 100 hair strands a day.

Sudden hair loss that starts with 1 or more round bald patches that may overlap.

A general term for age-related wear and tear of the spinal disks.

A slow-growing blood cancer in which bone marrow makes too many red blood cells.

A virus that spreads from person to person, most often causing sores around the mouth or genitals.

An infection caused by Ebola virus strains.

A group of genetic diseases that causes muscles to become weaker and lose mass over time.

A serious developmental disorder that impairs the ability to communicate and interact.

A rare inherited condition that causes an amino acid called phenylalanine to build up in the body.

The most common type of muscular dystrophy, which is a genetic condition that becomes worse over time.

An injury in which body tissue is ripped or torn away.

Blue-red marks on a baby's skin that can be caused by blood disorders, a tumor or an infection that spreads to the baby before birth.

A chronic infection caused by bacteria that affects the skin, bones and joints.

A rare condition in which some bones and tissues in the face are not developed.

Painful swelling called inflammation that affects the area just below the knee.

An infection caused by a virus that leads to the growth of warts and also may lead to cancer, depending on the strain.

A condition of ongoing muscle pain.

Infection with the herpes simplex virus around the border of the lips.

Damage to the skin or deeper tissues caused by sun, fire, electricity, or chemicals.

An infection of the lungs or the airways that connect the windpipe to the lungs.