A nosebleed happens when tiny blood vessels inside the nose break and blood comes out of the nostrils. Nosebleeds are common in children, especially kids 3 to 10 years old. Most aren't a sign of ...

From enjoying the great outdoors to playing sports safely, here's how to protect yourself and deal with emergencies.

Por lo general, los médicos no pueden saber si una persona se ha estado masturbando (tocarse o frotarse los genitales porque le gusta lo que se siente). La única manera de que los médicos sepan si una ...

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 ...

Hereditary hemochromatosis is a disease that causes the body to absorb and store more iron than it should. The iron comes from the foods we eat. With hemochromatosis (hee-muh-kro-muh-TOE-sus), iron ...

What Is Body Dysmorphic Disorder? Body dysmorphic disorder causes people to feel worried that parts of their body are flawed in some way. It’s related to obsessive-compulsive disorder (OCD). People ...

What Is a Cardiac Catheterization? A cardiac catheterization is a procedure that cardiologists (heart doctors) do. They put a catheter (a long, thin tube) into a blood vessel, then guide it the heart.

What Is Sever's Disease? Sever's disease is a swelling and irritation of the growth plate in the heel. The growth plate is a layer of cartilage near the end of a bone where most of the bone's growth ...

Many things can lead to hearing loss, but often, no cause is found. Hearing loss is more likely if a child: Some hearing problems come on gradually after birth or show up later in life. If you are ...

What Is Autism Spectrum Disorder? Autism spectrum disorder (ASD) refers to a range of conditions that start early in life and can affect how someone communicates and interacts with others. People with ...

When blood glucose levels (called blood sugar levels) drop too low, it's called hypoglycemia. For people with diabetes, hypoglycemia (hi-poe-gly-SEE-me-uh) happens when blood sugar levels fall below ...

What Is Jumper's Knee? Jumper's knee is an injury of the patellar tendon. The patellar tendon is the cord-like tissue that joins the patella (kneecap) to the tibia (shinbone). Jumper's knee is an ...