Iritis is the inflammation of your iris and the anterior chamber of your eye. Iritis can lead to serious problems. It can cause severe vision loss and even blindness.

Impetigo is an infection of the outer layer of the skin. It's most often caused by certain bacteria. Impetigo is much more common in children, but adults can get it too. Learn details about causes, symptoms, and treatment.

A buildup of earwax is called impacted earwax. It can cause symptoms, such as hearing loss. Impacted earwax is very common. With age, earwax tends to become harder and less mobile. Older adults are more likely to have problems with excess earwax.

Iliotibial band syndrome (often called IT band syndrome) is a health problem that causes pain on the outside of the knee. It mostly commonly happens in athletes, especially distance runners, or those new to exercise. Read on to learn more.

Hypertrophic cardiomyopathy (HCM) is a disease that causes thickening (hypertrophy) of the heart muscle. The heart cells enlarge more than they should, and scarring is often found between the cells.

Herpes eye disease is a group of eye disorders caused by infection with the herpes simplex virus (HSV).

Your immune system's job is to seek out destroy foreign substances in the body. It destroys bacteria and viruses to help keep you healthy. Normally, this is a good thing, but sometimes the immune system's response can lead to problems.

Glioblastoma multiforme (GBM) is the most common brain tumor in adults. Treatment is aggressive and involves surgery, radiation, and chemotherapy.

Ehrlichiosis is an illness caused by bacteria that’s spread by ticks. The illness causes fever, muscle aches, and other symptoms. Read on to learn details.

Ectropion is a sagging or outward turning of an eyelid. It usually affects a lower eyelid. It often affects both lower eyelids. But in some cases it only affects one side.