Many young kids have bow legs (genu varum), flat feet, knock knees (genu valgum), in-toeing, out-toeing, or toe walking. Often, as kids grow these conditions can correct themselves without treatment.

Medically reviewed by: Larissa Hirsch, MDThis link opens in a new tab Learn About Cardiology (Heart Care) at Nemours Children's HealthThis link opens in a new tab The heart is an organ that’s a pump, ...

Medically reviewed by: Leslie A. Gavin, PhDThis link opens in a new tab Learn About Developmental Behavioral Pediatrics at Nemours Children's HealthThis link opens in a new tab Autism (say: AW-tiz-um) ...

Medically reviewed by: Larissa Hirsch, MDThis link opens in a new tab Learn About Primary Care Pediatrics at Nemours Children's HealthThis link opens in a new tab The male reproductive system is made ...

What Are the Lungs and Respiratory System? The lungs and respiratory system allow us to breathe. They bring oxygen into our bodies (called inspiration, or inhalation) and send carbon dioxide out ...

Medically reviewed by: KidsHealth Medical ExpertsThis link opens in a new tab Learn About Primary Care Pediatrics at Nemours Children's HealthThis link opens in a new tab The digestive system breaks ...

Medically reviewed by: Melanie L. Pitone, MDThis link opens in a new tab Learn About Primary Care Pediatrics at Nemours Children's HealthThis link opens in a new tab A well-stocked first-aid kit, kept ...

Learn About Behavioral Health (Psychology and Psychiatry) at Nemours Children's HealthThis link opens in a new tab Having a shy style isn't necessarily a problem. It's perfectly OK to take time to ...

Medically reviewed by: Larissa Hirsch, MDThis link opens in a new tab Learn About Sports Medicine at Nemours Children's HealthThis link opens in a new tab Gymnastics is a fun, challenging sport and a ...

Learn About Cardiology (Heart Care) at Nemours Children's HealthThis link opens in a new tab An atrial septal defect (ASD) — sometimes called a hole in the heart — is a type of congenital heart defect ...

Medically reviewed by: KidsHealth Medical ExpertsThis link opens in a new tab Learn About Primary Care Pediatrics at Nemours Children's HealthThis link opens in a new tab How do you remember the way ...

We've got head-to-toe info about common illnesses and injuries, from the flu and bug bites to nosebleeds and broken bones.