Health Information Library

Any of a group of infectious diseases that affect many of the body's organs and may lower the blood's ability to clot.

A lack of the recommended blood levels of one or more essential vitamins.

An illness caused by infection with bacteria and commonly spread through contaminated food or water.

An unusual amount of fluid, ranging from clear to thick mucus, can run from the nose.

A serious illness caused by bacteria that mainly infect the lungs.

A condition that occurs when cancer cells spread from their original site to a bone.

Learn about the types of viral hepatitis, how they spread, how they're treated and how to protect yourself from getting sick.

A hormonal condition causing the ovaries to get larger and form small cysts on their outer edges.

An immune system illness marked by dry eyes and dry mouth.

This condition slows or blocks blood flow through the liver. Treatment is key to help prevent and manage serious complications such as bleeding.

You can get immunity from a virus by getting the vaccine or by getting the virus. Which is better for you?

A painful condition affecting the tendons on the thumb side of the wrist.

A common break of the wrist.

Vaccines start earlier than many parents expect. Here's why — and what decades of science say about safety and protection.

A common wrist fracture.

There are several types of vaccines. Each works a little differently.

A common condition in which one of the long bones near the wrist breaks.

Learn about this type of non-Hodgkin lymphoma that affects the lymph nodes and can spread to the organs. Find out about symptoms, diagnosis and treatments.

Learn how these rare tumors affect children and adults, how they're treated, and what the overall prognosis looks like.

Learn about this type of prostate biopsy that combines MRI scans with ultrasound images to target areas of the prostate that are more likely to have cancer.