Anemia is a condition that develops when your blood lacks enough healthy red blood cells. These cells are the main transporters of oxygen to organs. If red blood cells are also deficient in hemoglobin, then your body isn't getting enough oxygen. Symptoms of anemia -- like fatigue -- occur because organs aren't getting enough oxygen. Anemia is the most common blood condition in the U.S. It affects about 3.5 million Americans. Women and people with chronic diseases are at increased risk of anemia. Follow the links below to find WebMD's comprehensive coverage about what causes anemia, what it looks like, how to treat it, and much more.
WebMD's overview of the many types and causes of anemia.
How Anemia Is Diagnosed and Treated
WebMD's guide to the diagnosis and treatment of various types of anemia.
Symptoms of Anemia
WebMD's guide to the symptoms of the various types of anemia.
What is Sickle Cell Disease?
Sickle cell disease is the most common blood disorder passed down from parents to children. Learn how a gene mutation causes it.
Slideshows & Images
A Visual Guide to Lupus
WebMD's slideshow helps you understand the symptoms of lupus, an autoimmune disorder that can affect the skin, joints, and organs.
Visual Guide to Anemia
Do you have anemia fatigue? Our pictures show common anemia symptoms, treatments, and how you may be able to prevent anemia.
Top Foods High in Iron
Which foods are high in iron -- and tasty, too?