Health Information Library

Getting stuck by a needle that has someone's blood or other body fluid on it.

Serious lack of food and nutrition.

This minimally invasive technique uses heat to target and destroy brain tissue. Find out when it may be used, potential benefits, and key limitations.

A low level of the mineral magnesium in the body.

Any condition caused by poor diet or the inability of the body to use certain nutrients.

A disorder that happens when structures inside cells that make energy don't work properly.

A condition caused by a severe lack of vitamin C in the diet.

An inherited blood-clotting condition that can raise the risk of getting blood clots.

A condition in which blood doesn't clot in the typical way.

Learn about this type of non-Hodgkin lymphoma that attacks the skin. Find out about symptoms, diagnosis and treatment.

A delay or blockage of electrical signals to the left side of the heart.

A delay or blockage of electrical signals to the right side of the heart.

An illness caused by infection with bacteria and spread mainly by contact with genitals or body fluids.

Inflammation of the heart muscle.

A heart rhythm disorder that can cause fast, chaotic heartbeats.

An injury that happens when the ankle rolls, twists or turns in an odd way.

Learn about this type of non-Hodgkin lymphoma that can attack many organs including the stomach, small intestine and the eyes. Find out about symptoms, diagnosis and treatments.

An injury in which the upper arm bone pops out of the shoulder socket.

A viral infection spread mainly by mosquito bites.

Swelling and irritation of the thin, saclike tissue that surrounds the heart, called the pericardium.