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Knowing the stage of your cancer is vital when deciding how to treat it. This helpful guide explains the 4 stages of Hodgkin lymphoma and what they mean.

A stem cell transplant uses young blood cells, called stem cells, to replace bone marrow that has been destroyed by cancer treatment. It is a complex treatment and can cause serious side effects. Here's what you need to know.

Hodgkin lymphoma can have many different symptoms. Read on for a helpful look at some of the most common symptoms.

Touring the hospital before surgery can help your child see the sights, sounds, and events they will experience the day of surgery. It is a nonthreatening, often reassuring, way to learn about the hospital.

A detailed look at immunology, the study of the body's immune system. And serology, the study of blood serum.

If you know anything about your baby's sleeping pattern, it's probably that it doesn't coincide with yours. But learning more about your baby's nighttime and daytime sleep needs can help you recognize what's normal, and what's not.

As part of your preparation for your new baby, you probably got an infant safety seat for the car. But do you know how to make sure it’s installed correctly? And when do you switch to a child safety seat? Learn the ins and outs of safe car travel for your little one.

Intensive care is needed for children who have had certain types of major surgery: heart operations, organ transplants, or neurosurgery.

Joint replacement surgery removes and replaces an arthritic or damaged joint with an artificial joint. Read on to learn how to get ready for the procedure, and possible complications.

The stage of a cancer is a description of how much and how far the cancer has spread in your body. Read on to learn the staging of AIDS-related Kaposi sarcoma (KS), the most common type of KS in the U.S.