Plantar fasciitis (PLAN-ter fash-ee-EYE-tus) is pain and inflammation on the bottom of the foot and heel from too much pressure on the foot. It tends to happen in kids and teens who do a lot of ...

What Is Iliotibial Band Syndrome? Iliotibial (IT) band syndrome is an overuse or repetitive stress injury to the knee or hip that can happen someone bends their knee a lot. It tends to happen in ...

What Is Hypotonic Cerebral Palsy? Cerebral palsy (CP) affects muscle movement and control. People with CP have it for life. Hypotonic CP is rarer than other types of CP. In rare cases, CP happens ...

Rumination syndrome happens when just-swallowed food comes back up into the mouth from the stomach. When this happens, a person chews and swallows the food again or spits it out. Rumination syndrome ...

We see and hear about hearts everywhere. A long time ago, people even thought that their emotions came from their hearts, maybe because the heart beats faster when a person is scared or excited. Now ...

An erection is when the penis gets hard because sponge-like tissue in it fills with blood. Erections tend to make the penis get bigger and stand away from the body. Erections can go away on their own ...

How Does Air Enter the Respiratory System? Air enters the respiratory system through the nose or the mouth. If it goes in the nostrils (also called nares), the air is warmed and humidified. Tiny hairs ...

¿Qué es el síndrome de rumiación? El síndrome de rumiación consiste en que la comida recién ingerida regresa a la boca desde el estómago. Cuando esto ocurre, la persona mastica y se vuelve a tragar la ...

What Is Gastroesophageal Reflux (GER)? Gastroesophageal reflux (GER), or reflux, is when food and acid from the stomach go back up into the esophagus and sometimes out the mouth or nose. It’s normal ...

Most blood tests take only a few minutes. They’re done at some doctor’s offices, and at community labs, diagnostic centers, and hospitals. A doctor, nurse, or phlebotomist (fleh-BOT-eh-mist, someone ...

Sexually transmitted diseases (STDs) are infections spread from person to person during sex (vaginal, oral, or anal) or close sexual contact. STDs are also called sexually transmitted infections, or ...

Your baby is finally coming home from the hospital after a stay in the NICU. Before you leave, learn all you can from the care team about caring for your baby so that you can feel confident at home.