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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 Symptom: Malaise and Fatigue

Malaise and fatigue are common symptoms of many ailments.

A to Z: Marcus Gunn Syndrome

Marcus Gunn syndrome is a congenital condition where a drooping eyelid briefly opens wider and appears to wink when the jaw is moved.

A to Z: Meatal Stenosis

The meatus is the opening in the penis where urine (pee) comes out. In meatal stenosis, the meatus is too small.

A to Z: Medial Collateral Ligament (MCL) Injuries

Learn more about MCL injuries and how they're treated.

A to Z: Meibomian Cyst

A meibomian cyst, or chalazion, is a lump on the inner side of the eyelid. It occurs when one of the small oil glands becomes blocked.

A to Z: Meningitis, Bacterial

Learn about this rare but serious condition in which bacteria invade the membranes around the brain and spinal cord.

A to Z: Meningitis, Viral

Sometimes viruses can spread to the meninges, the membrane around the brain and spinal cord, and cause more severe illness. Learn about it here.

A to Z: Mental Disorder, Non-psychotic

Learn about types of mental disorders and conditions that affect thinking and behavior.

A to Z: Metabolic Syndrome

Metabolic syndrome is a group of separate health problems that often happen together in a person.

A to Z: Microcephaly

Microcephaly is a rare condition in which a child's brain doesn't fully develop, resulting in an abnormally small head size.