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.
Myelodysplastic syndrome (MDS) is a condition that affects the bone marrow and the blood cells it produces.
Your bone marrow makes different types of blood cells:
Red blood cells, which carry oxygen in your blood.
White blood cells of different types, which are important elements of your immune system.
Platelets, which help your blood to clot.
Your bone marrow needs to produce the proper number of these cells. And the cells need to have the right shape and function.
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: