Skip to content
Font Size

What Is Aplastic Anemia?

When you have the rare but treatable disorder known as aplastic anemia, your marrow -- the spongy stuff inside your bones -- stops making new blood cells. Sometimes it stops making just one type, but more often you become low on all three: red and white cells, and platelets.

It can develop slowly or come on suddenly. If your blood count gets low enough, it can be life-threatening.

Recommended Related to Leukemia & Lymphoma

General Information About AIDS-Related Lymphoma

Background and Definitons The AIDS was first described in 1981, and the first definitions included certain opportunistic infections, Kaposi sarcoma, and central nervous system (CNS) lymphomas. In 1984, a multicenter study described the clinical spectrum of non-Hodgkin lymphomas (NHLs) in the populations at risk for AIDS.[1] In 1985 and 1987, the Centers for Disease Control and Prevention (CDC) revised the definition of AIDS to include human immunodeficiency virus (HIV)-infected patients who...

Read the General Information About AIDS-Related Lymphoma article > >

Who Gets It?

Anyone can get aplastic anemia, but it's more likely to happen to people in their late teens and early 20s, and the elderly. Males and females have about an equal chance of getting it. It is more common in developing countries.

There are two different types:

  • Acquired aplastic anemia
  • Inherited aplastic anemia

Doctors will check to determine which you have.

Inherited aplastic anemia is caused by gene defects, and is most common in children and young adults. If you have this type, there is a higher chance of developing leukemia and other cancers, so see a specialist regularly.

Acquired aplastic anemia is more common in adults. Researchers believe something triggers problems in the immune system. The possibilities include:


What Are the Symptoms?

Each type of blood cell has a different role:

  • Red cells carry oxygen around the body.
  • White cells fight infections.
  • Platelets prevent bleeding.

Your symptoms depend on what type of blood cells you're low on, but you may be low on all three. These are common symptoms for each:

Low red blood cell count:

Low white blood cell count:

  • Infections
  • Fever

Low platelet count:

If you have some of these symptoms, your doctor may do a test called a complete blood count. She may also take a biopsy of your bone marrow to check you for this disorder.

How Is It Treated?

If your doctor can identify the cause of your aplastic anemia and get rid of that trigger, the condition may go away. But doctors can rarely pinpoint the exact cause.

Hot Topics

WebMD Video: Now Playing

Click here to wach video: Dirty Truth About Hand Washing

Which sex is the worst about washing up? Why is it so important? We’ve got the dirty truth on how and when to wash your hands.

Click here to watch video: Dirty Truth About Hand Washing

Popular Slideshows & Tools on WebMD

disciplining a boy
Types, symptoms, causes.
Remember your finger
Are You Getting More Forgetful?
fruit drinks
Eat these to think better.
No gym workout
Moves to help control blood sugar.
acupuncture needle on shoulder
10 tips to look and feel good.
Close up of eye
12 reasons you're distracted.
birth control pills
Which kind is right for you?
embarrassed woman
Do you feel guilty after eating?
Epinephrine Injection using Auto-Injector Syringe
Life-threatening triggers.
woman biting a big ice cube
Habits that wreck your teeth.
pacemaker next to xray
Treatment options.
caregiver with parent
10 tips for daily life.

Pollen counts, treatment tips, and more.

It's nothing to sneeze at.

Loading ...

Sending your email...

This feature is temporarily unavailable. Please try again later.


Now check your email account on your mobile phone to download your new app.

Women's Health Newsletter

Find out what women really need.