Blood for Kids
The thought of blood may make you cringe, but blood is also keeping you going. Learn more about blood problems and disorders in this subsection devoted to this important substance.
Blood Test: Complete Blood Count for Teens
This common blood test helps doctors gather information about a person's blood cells and how they're working. Find out why doctors do this test and what's involved for teens.
Blood for Teens
Find out about the mysterious, life-sustaining fluid called blood.
Blood Test: Complete Blood Count for Parents
The complete blood count (CBC) is the most common blood test. It analyzes red blood cells, white blood cells, and platelets.
What's Blood? for Kids
It swirls through your veins and arteries, but what is it really? Find out about blood in this article for kids.
Blood Transfusions for Teens
About 5 million people a year get blood transfusions in the United States. This article explains why people need them and who donates the blood used.
Donating Blood for Teens
There's a 97% chance that someone you know will need a blood transfusion. Blood donors — especially donors with certain blood types — are always in demand. Find out what's involved in this article for teens.
Blood Types for Teens
Blood might look the same and do the same job, but tiny cell markers mean one person's body can reject another person's blood. Find out how blood types work in this article for teens.
Blood Disorders for Teens
This section has information on problems or diseases that affect a person's blood.
Blood for Parents
Here are the basics about the life-sustaining fluid called blood.