Growth hormone deficiency means that a child doesn't have enough growth hormone. It affects how much a child grows, and it can cause other symptoms. Read on to learn more.

Here are the steps for using hand sanitizer.

Labyrinthitis is the inflammation of part of the inner ear called the labyrinth. It usually affects only 1 ear. A nerve in the head called the eighth cranial nerve may also be inflamed. Labyrinthitis causes a sense of spinning and hearing loss. In most people these go away over time.

Keratoconus is an eye disorder where your cornea thins slowly over time. It happens more often in young adults in their teens and 20s.

Neuronal and mixed neuronal-glial tumors are types of rare tumors that occur in the brain or spinal cord. There are many kinds of these tumors. But a person will have just 1 tumor of 1 type.

Don't let fear of an asthma flare-up keep your child from being active. The key is keeping their asthma under control. Read on for helpful tips to make exercise safer.

Answering these questions about your child's asthma will help you know if it's under control. If it's not, your child's doctor can help.

Learn how to protect your newborn baby from cigarette smoke.

In newborns, skin color changes are often due to something happening inside the body. Some color changes are normal. Others are signs of problems. The changes described below can happen to any newborn. But skin color changes may be more obvious in babies born early, or prematurely, who have thinner skin than full-term babies.

Polycythemia occurs when a baby's blood has more red cells than normal. It's the opposite of anemia, which is caused by too few red cells.