Health Information Library

A type of arthritis that affects some people who have the skin condition psoriasis.

One-sided, lower belly pain linked to ovulation.

Crackling or grating sound caused by joint surfaces rubbing against each other.

A heart rhythm disorder in which the heart's upper chambers beat too quickly. Also called an arrhythmia.

Painful swelling of the fluid-filled pads, called bursae, that act as cushions at the joints.

A bacterial infection of the nervous system that can be prevented by a vaccine.

A life-threatening illness in newborn babies caused by infection with germs called bacteria.

A bulge of tissue into the vagina that occurs when the tissue between the rectum and the vagina weakens or tears.

A rare heart rhythm disorder that can cause dangerously fast and irregular heartbeats.

Irritation and swelling of the ear, often from infection.

A rare but serious infection caused by bacteria spread by small animals and their fleas.

A cancer that starts in the prostate, a small walnut-shaped gland that produces seminal fluid.

A group of viruses that commonly cause stomach upset and diarrhea, especially in children.

Pain in the inner or outer ear that can affect hearing. Often caused by fluid buildup and infection.

A condition in which the kidneys lose their ability to filter waste and excess fluid from the blood.

A testicle that hasn't moved into the bag of skin below the penis before birth.

A condition that causes a frequent and sudden urge to urinate that may be hard to control.

An infection of the nose and throat caused by a virus.

An infection of the air-filled space behind the eardrum, also known as the middle ear.

A blockage of blood flow to the heart. Also called a heart attack.