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Zika is a virus caused by a bite from the Aedes mosquito. It is contagious and increases the risk of…

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

Motion sickness is feeling triggered by movement. It occurs in cars, buses, trains, planes, or boats. It also can happen…

Tuberous sclerosis is a rare disease that causes tumors, or growths, in the brain and other organs. They are usually…

Strabismus is an eye disorder. It affects the muscle control in your eyes. The eyes don’t line up properly. Instead,…

Premature ejaculation happens when an individual has an orgasm sooner than wanted. It can happen before or shortly after…

Abusive head trauma (shaken baby syndrome) is a form of child abuse that can be deadly or leave a baby…

An anal fistula is an abnormal connection that forms between the anus and the skin outside of it. It usually…

Alopecia areata is an autoimmune disease that causes you to lose small, round patches of hair on your head.

Bladder stones are small crystals that form in your urine. They are hard and become trapped in your bladder. They…

Asthma is a disease that often starts in childhood and makes it difficult for your child to breathe.

Hepatitis A (Hep A) is liver inflammation caused by the hepatitis A virus. It isn’t typically as serious as hepatitis…

Canker sores are small, thin sores in your mouth. You might get them on the inside of your lips or…