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Septal myectomy is a type of open-heart surgery for hypertrophic cardiomyopathy (thick heart muscle). It decreases symptoms of the condition.

Myocardial perfusion is an imaging test. It's also called a nuclear stress test. It's done to show how well blood flows through the heart muscle. It also shows how well the heart muscle is pumping.

A sleep study is a number of tests done at the same time during sleep. The tests measure specific sleep characteristics and help to diagnose sleep disorders. Read on to learn what to expect.

Chemical burns can occur when strong acids or alkalis come in contact with the skin or the eyes. Learn how to care for your child and how to get help.

Learn how to care for your child who has a burn caused by heat.

PFAPA is a childhood syndrome that causes repeated episodes of fever, mouth sores, sore throat, and swollen lymph nodes. PFAPA usually starts in early childhood between ages 2 and 5.

Proctectomy is a surgery to remove all or part of the rectum. It is often needed to treat rectal cancer.

Antibiotics have been called "wonder drugs," because of their ability to treat bacterial infections that were once deadly. Antibiotics have saved countless lives since they were first introduced 60 years ago. But over use of these drugs has allowed some bacteria to become resistant to them.

The itching caused by athlete's foot can be intense. Named for the active people who seem most prone to this condition, athlete's foot can affect even couch potatoes. Find out more by taking this multiple-choice quiz.