It’s normal for people to masturbate (touch or rub their own genitals because they like the way it feels). Some people do it to relieve stress or tension. It’s nothing to be ashamed of or embarrassed ...

COVID-19 usually is milder in kids than in adults, though some children have gotten pretty sick from it. Many parents wonder what to do if their child gets sick. Here's what you need to know.

Body mass index (BMI) is a calculation that uses height and weight to estimate how much body fat someone has. You can use the KidsHealth BMI calculator below to find your child's BMI. But it's also ...

Teaching kids about their bodies and what is private can be tricky. But parents can help kids develop healthy feelings about their bodies in age-appropriate ways. This also helps kids learn what’s not ...

The name fat may make it sound like something you shouldn't eat. But fat is an important part of a healthy diet. Fat from your diet gives you energy. As a bonus, fat in food helps you feel full, so ...

Both the brain and the spinal cord are protected by bone: the brain by the bones of the skull, and the spinal cord by vertebrae, a set of ring-shaped bones. They're both cushioned by layers of ...

When blood gets into urine (pee), it's called hematuria (hee-ma-TUR-ee-uh). It's pretty common and usually not serious. There are two types of hematuria: In rare cases, hematuria can be a sign of ...

If your parents decide to divorce, you may have a lot of emotions and questions. That’s OK because it’s a big change for the whole family, including you. There’s plenty you can do to start to feel ...

A central line (or central venous catheter) is like an intravenous (IV) line. But it is much longer than a regular IV and goes all the way up to a vein near the heart or just inside the heart. A ...

From your nose to your toes, do you know how the body works? Take these quizzes to find out!

A period is when blood comes out through a girl's vagina. It is a sign that she is getting close to the end of puberty. Puberty is when your body goes from looking like a kid's into looking more like ...

There's no cure for HIV/AIDS, but medicines can help people live long, healthy lives. What Happens In HIV Infection? HIV attacks cells in the immune system called CD4 cells (or T cells). CD4 cells ...