What Is Mitral Valve Prolapse? Mitral valve prolapse is a common heart condition. It happens when there’s a problem with how one of the heart's valves works. Heart valves keep blood moving through the ...

Medically reviewed by: Amy W. Anzilotti, MDThis link opens in a new tab Learn About Adolescent Medicine & Pediatric Gynecology at Nemours Children's HealthThis link opens in a new tab Most of the time ...

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 Reproduction is the process ...

What Does the Immune System Do? If you've ever wondered how your immune system works, this movie is for you!

Medically reviewed by: Joseph H. Piatt Jr., MDThis link opens in a new tab Learn About Neurosurgery Care at Nemours Children's HealthThis link opens in a new tab A ventriculoperitoneal (VP) shunt is a ...

Medically reviewed by: Amy W. Anzilotti, MDThis link opens in a new tab Learn About Primary Care Pediatrics at Nemours Children's HealthThis link opens in a new tab A breath holding spell is when a ...

Medically reviewed by: Yamini Durani, MDThis link opens in a new tab Learn About Primary Care Pediatrics at Nemours Children's HealthThis link opens in a new tab Putting things in their mouths is one ...

Do you know how to be street smart? Being street smart means knowing how to keep yourself safe from strangers when you're alone or with other kids. Whether you're walking to school or to the bus, ...

What Is Fetal Alcohol Syndrome (FAS)? Babies whose mothers drank alcohol during their pregnancy can be born with birth defects and developmental disabilities. The problems that can happen when babies ...

Medically reviewed by: Melanie L. Pitone, MDThis link opens in a new tab Learn About Emergency Medicine at Nemours Children's HealthThis link opens in a new tab Before you get behind the wheel, get ...

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 Every single person has a ...

What Are the Spleen and Lymphatic System? The spleen is located in the upper left part of the belly under the ribcage. It helps protect the body by clearing worn-out red blood cells and other foreign ...