How Does the Skin Work? What Does Skin Do? You couldn't live without the skin you're in. Find out what's going on under the surface in the skin video.

Exposure to below-freezing temperatures can cause frostbite, a rare but serious condition that needs emergency medical care. Frostbite can affect any area of the skin, and in extreme cold can develop ...

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 ...

¿Qué es una torsión del pene? La torsión del pene ocurre cuando la piel del pene de un bebé se retuerce. La torsión leve del pene es frecuente y no causa ningún problema. A veces, la torsión del pene ...

What Is a VP Shunt? A ventriculoperitoneal (VP) shunt is a thin plastic tube that helps drain extra cerebrospinal fluid (CSF) from the brain. CSF is the saltwater that surrounds and cushions the brain ...

What Is an Umbilical Hernia? An umbilical hernia happens when part of a child's intestines bulges through the abdominal wall inside the belly button. It shows up as a bump under the belly button. The ...

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 ...

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 ...

infection in the urinary tract irritation or injury of the genital area stones (small masses of minerals) in the urinary tract Urinary tract infections (UTIs) are the most common cause of pain during ...

Flat feet are feet that do not have an arch. The middle of the foot touches the ground. Feet with no arches is the main sign of flat feet. Sometimes, flat feet can cause foot, ankle, or knee pain.

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 ...

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 ...