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.
How Anemia Is Diagnosed and Treated
WebMD's guide to the diagnosis and treatment of various types of anemia.
Folic Acid Deficiency Anemia (Low Folate)
Anemia isn’t always caused by a lack of iron. Not getting enough folate can harm your health, too.
Why Am I Always So Cold? 5 Possible Reasons You're Freezing All The Time
Do you find yourself shivering when no one else is? WebMD explains possible causes for the condition.
Aplastic Anemia: What You Need to Know
WebMD explains aplastic anemia, a serious but treatable blood condition.
Slideshows & Images
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?
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.