Health Information Library

A birth that takes place too early, before the 37th week of pregnancy.

Orgasm and emission of semen occurring just before or shortly after beginning sexual intercourse.

A sac, usually filled with fluid, in or on an ovary.

The inside of the nose can swell with fluid and mucus. Infection, tobacco smoke or perfume can be the cause.

Pain on the inside or outside the hip, which can be caused by arthritis, injuries or other health problems.

A deformity of the outer ear that may occur after injury to the ear.

A complication of severe hypothyroidism that can lead to serious health problems.

Mucus that builds up and drips down the back of the nose and the throat.

A condition that causes high blood sugar during pregnancy.

Repeated sneezing or a stuffy, drippy nose, either from an allergy or from no known cause.

A condition in which the thyroid gland doesn't make enough thyroid hormones.

A group of virus strains spread through contact with rodents that causes serious bleeding or breathing issues.

A respiratory illness caused by a virus.

A rare skin condition causing large, fluid-filled blisters.

A skin rash that appears around the mouth.

A condition that happens when a baby's spine and spinal cord don't form properly.

This rare, fast-growing brain or spinal tumor is most common in young children.

Inflammation of the optic nerve.

Extra heartbeats that begin in one of the lower heart chambers.

A tear in the inner layer of the body's main artery, called the aorta.