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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.

Bones & Muscles

Idiopathic Scoliosis

Kids of any age can have idiopathic scoliosis, but it's usually found when a child begins going through puberty. Find out more about the signs of and treatment for idiopathic scoliosis.

Iliotibial Band Syndrome

Iliotibial (IT) band syndrome is an overuse or repetitive stress injury to the knee or hip that often happens when the knee is bent a lot, like in cycling or running.

Incentive Spirometer

An incentive spirometer trains people to take slow, deep breaths. It's used during recovery from some types of surgery or as a way to manage illness. Find out how it works.

Intoeing

Intoeing is when feet point inward while walking. It happens in a lot of kids who are learning to walk. Sometimes people call it walking "pigeon-toed."

Jumper's Knee

Jumper's knee is an overuse injury that happens when frequent jumping, running, and changing direction damages the patellar tendon.

Knee Injuries

Knee injuries are common among young athletes. Learn about causes, treatments, and prevention.

Kniest Dysplasia

Kniest dysplasia is a type of skeletal dysplasia, causing short stature (dwarfism) and other bone problems, along with vision and hearing problems.

Knock Knees (Genu Valgum)

Kids often have knock knees (when knees touch but the ankles are apart). They usually go away without on their own by the time a child is 7 or 8 years old.

Kyphosis

Everyone's spine is slightly rounded forward at a gentle angle. If this angle is too pronounced, more than 50 degrees or so, it's called kyphosis, also known as roundback or hunchback.

Leg Length Discrepancy

Leg length discrepancy is when someone’s legs are different lengths. For a big difference or one that's likely to get worse, treatment is recommended.