Medically reviewed by: Larissa Hirsch, MDThis link will open in a new window Learn About Ophthalmology (Eye Care) at Nemours Children's HealthThis link will open in a new window A tear duct is a small ...

Medically reviewed by: Larissa Hirsch, MDThis link will open in a new window Learn About Cardiology (Heart Care) at Nemours Children's HealthThis link will open in a new window The heart is an organ ...

Protein builds, maintains, and replaces the tissues in your body. (Not the tissues you blow your nose in! We mean the stuff your body's made up of.) Your muscles, your organs, and your immune system ...

What Is Polyarticular Juvenile Idiopathic Arthritis? Polyarticular juvenile idiopathic arthritis is a type of juvenile idiopathic arthritis (JIA). JIA is a group of disorders that causes arthritis ...

Medically reviewed by: Kate M. Cronan, MDThis link will open in a new window Learn About Cardiology (Heart Care) at Nemours Children's HealthThis link will open in a new window Heart palpitations (pal ...

Medically reviewed by: Thinh Phu Nguyen, MDThis link will open in a new window Learn About Fetal Medicine at Nemours Children's HealthThis link will open in a new window Having a full-term pregnancy ...

What should you expect as your child grows? Learn how to understand and deal with your child's changing body and mind from infancy through the teen years.

The nervous system controls everything you do, including breathing, walking, thinking, and feeling. This system is made up of your brain, spinal cord, and all the nerves of your body. The brain is the ...

Medically reviewed by: Melanie L. Pitone, MDThis link will open in a new window Learn About Primary Care Pediatrics at Nemours Children's HealthThis link will open in a new window When your child ...

Medically reviewed by: Melanie L. Pitone, MDThis link will open in a new window Learn About Primary Care Pediatrics at Nemours Children's HealthThis link will open in a new window ...

Medically reviewed by: Margaux J. Barnes, PhDThis link will open in a new window Learn About Behavioral Health (Psychology and Psychiatry) at Nemours Children's HealthThis link will open in a new ...

Medically reviewed by: Yamini Durani, MDThis link will open in a new window Learn About Primary Care Pediatrics at Nemours Children's HealthThis link will open in a new window Febrile seizures are ...