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kidshealth library

health & safety topics

Your child's health and safety is our top priority. Please search our resource library for information on health, nutrition, fitness, injury prevention and other important topics.


A to Z: Alcohol Abuse

Learn about alcohol abuse and consequences of excessive drinking.

A to Z: Allergy

With allergies, the immune system overreacts and tries to "fight" allergens, which are ordinary things that cause an allergic reaction.

A to Z: Allergy, Drug

Normally medicines help us treat disease, but in people with drug allergies, taking certain medicines can cause the immune system to react and harm the body.

A to Z: Alopecia Areata

Alopecia areata is a condition that causes hair loss on the scalp and sometimes elsewhere on the body.

A to Z: Alpha Thalassemia

Learn about genetic disorders and diseases and conditions that affect the blood.

A to Z: Amebiasis

Amebiasis is an intestinal illness. People get it after eating, drinking, or touching something that's contaminated with a tiny parasite called Entamoeba histolytica.

A to Z: Amenorrhea

Amenorrhea is when a girl is not getting her period.

A to Z: Amenorrhea, Primary

Primary amenorrhea is when a girl does not start her period by age 15 or 3 years after she begins puberty.

A to Z: Amenorrhea, Secondary

Secondary amenorrhea is when a girl who had been getting her period stops menstruating for more than 6 months or for more than three of her usual cycles.

A to Z: Anal Fissure

An anal fissure is a cut or tear in the lining of the anus.