Diseases and Conditions

Labyrinthitis is a condition that affects a part of the inner ear called the labyrinth. When it is swollen, you…

Lactose intolerance is a condition that causes stomach discomfort. It’s your body reacting to the sugar in milk (or other…

Natural rubber latex comes from a liquid in tropical rubber trees. The protein in this rubber can cause an allergic…

Leprosy is a chronic infection caused by bacteria. It can affect the skin, nerves of the hands and feet, eyes,…

Leukemia is a blood cancer involving your body’s bone marrow.

Lichen planus is a type of rash that forms on your skin, on genitalia, or in your mouth.

Lichen sclerosus is a skin condition that affects the genital or anal areas. It can cause a rash, itching, pain,…

Lipomas are slow-growing tumors that come from fat cells. They are usually round, moveable lumps under the skin.

Low back pain is common and has many causes, including injury, pregnancy, even poor posture.

As the lumbar spinal canal narrows (stenosis), the nerves that go through it are squeezed, causing back pain, leg pain,…

Lung cancer is abnormal growth of cells in the lungs.

Lupus is a disease that causes your immune system to become overactive and attack healthy cells and tissue. Lupus can…

Lyme disease is a bacterial infection caused by a tick bite.

Lymphedema is a condition often caused by cancer treatment or surgery. It results in swelling of the lymph nodes located…