Aplastic Anemia
What is Aplastic Anemia?
Aplastic anemia is a rare but serious blood condition. Your bone marrow, the soft tissue inside your bones, stops making enough new blood cells. This affects all three types of blood cells: red blood cells that carry oxygen, white blood cells that fight infection, and platelets that help blood clot.
When your bone marrow fails to produce these cells, your body struggles to function normally. You may feel exhausted because your tissues are not getting enough oxygen. You become more vulnerable to infections because you lack white blood cells. You may bruise easily or bleed longer than normal because you do not have enough platelets.
Aplastic anemia can develop slowly over weeks or months, or it can appear suddenly. Early detection through blood testing is essential. The condition can be life-threatening if left untreated, but many people respond well to treatment when caught early.
Symptoms
- Extreme fatigue and weakness that does not improve with rest
- Shortness of breath during normal activities or exercise
- Pale or yellowish skin tone
- Frequent or prolonged infections that do not heal quickly
- Easy bruising or small red spots on skin called petechiae
- Prolonged bleeding from cuts or nosebleeds that are hard to stop
- Rapid or irregular heartbeat, especially during physical activity
- Dizziness or lightheadedness when standing up
- Headaches and difficulty concentrating
- Unexplained fevers
Some people have mild symptoms at first and may not realize anything is wrong. Others develop severe symptoms quickly. The severity depends on how low your blood cell counts have dropped.
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Causes and risk factors
Aplastic anemia happens when your bone marrow becomes damaged and can no longer produce enough blood cells. In many cases, the cause is autoimmune. Your immune system mistakenly attacks your own bone marrow stem cells. Other causes include exposure to toxic chemicals like benzene or pesticides, radiation, chemotherapy drugs, certain medications including some antibiotics and anti-inflammatory drugs, and viral infections such as hepatitis, Epstein-Barr virus, or HIV. Inherited conditions like Fanconi anemia can also cause bone marrow failure.
About half of all aplastic anemia cases are idiopathic, meaning doctors cannot identify a specific cause. Risk factors include recent viral infections, exposure to industrial chemicals or pesticides, cancer treatment with radiation or chemotherapy, autoimmune disorders, and certain inherited genetic conditions. Pregnancy can rarely trigger aplastic anemia, though this usually resolves after delivery.
How it's diagnosed
Doctors diagnose aplastic anemia through blood tests and bone marrow examination. A complete blood count reveals low levels of all three blood cell types. This pattern is called pancytopenia. Blood tests show low white blood cell count, low platelet count, and anemia with often elevated mean corpuscular volume. Red cell distribution width may be high, reflecting stress on the bone marrow and variation in red blood cell size.
Rite Aid offers testing that can detect the blood count abnormalities seen in aplastic anemia. Our flagship panel measures white blood cell count, platelet count, mean corpuscular volume, red cell distribution width, and neutrophil levels. These biomarkers help identify bone marrow problems early. If blood tests suggest aplastic anemia, your doctor will order a bone marrow biopsy to confirm the diagnosis and determine severity.
Treatment options
- Blood transfusions to replace red blood cells and platelets as needed
- Medications to suppress the immune system, such as cyclosporine or antithymocyte globulin
- Bone marrow stimulating drugs like eltrombopag to help produce more blood cells
- Antibiotics and antifungal medications to prevent and treat infections
- Bone marrow or stem cell transplant for severe cases, especially in younger patients
- Avoiding contact sports and activities that could cause bleeding or injury
- Eating a nutrient-dense diet rich in iron, folate, and vitamin B12 to support blood cell production
- Avoiding alcohol and medications that can further damage bone marrow
- Practicing careful hygiene to reduce infection risk
- Getting adequate rest and managing stress to support immune function
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- Simple blood draw at your nearest lab
- Results in days, not weeks
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Frequently asked questions
Most anemias involve low red blood cells only, often due to iron deficiency or vitamin deficiency. Aplastic anemia is different because it affects all three types of blood cells at once. Your bone marrow stops producing red blood cells, white blood cells, and platelets. This makes aplastic anemia more serious and requires different treatment than typical anemia.
Yes, a complete blood count can reveal the low blood cell levels that suggest aplastic anemia. The test shows low white blood cells, low platelets, and low red blood cells. You may also see elevated mean corpuscular volume and red cell distribution width. However, you need a bone marrow biopsy to confirm the diagnosis and rule out other conditions.
Aplastic anemia can be cured in many cases, especially with bone marrow or stem cell transplant. Younger patients with severe disease often achieve long-term remission after transplant. For those who cannot have a transplant, immunosuppressive therapy can restore bone marrow function in 60 to 80 percent of cases. Some people need ongoing treatment to keep blood counts stable.
Aplastic anemia can develop slowly over months or appear suddenly within weeks. The speed depends on what caused the condition and how severely your bone marrow is damaged. Some people notice gradual fatigue and weakness over time. Others develop severe symptoms quickly, including dangerous infections or bleeding episodes that require immediate medical attention.
Certain antibiotics like chloramphenicol, some anti-inflammatory drugs, anticonvulsants, and chemotherapy medications can damage bone marrow. Gold compounds used for arthritis and some psychiatric medications have also been linked to aplastic anemia. Most people who take these drugs do not develop the condition. If you take any of these medications and notice unusual fatigue or bruising, contact your doctor right away.
Many people with treated aplastic anemia live active, fulfilling lives. Success depends on how well you respond to treatment and how severe your condition is. Some people recover fully after treatment and need minimal monitoring. Others require ongoing medication or periodic blood transfusions. You may need to avoid certain activities that increase bleeding or infection risk.
Early signs include unusual tiredness that does not improve with rest, frequent infections that take longer to heal, and easy bruising or bleeding. You might notice small red or purple spots on your skin called petechiae. Some people develop shortness of breath with mild activity or experience rapid heartbeat. These symptoms can be subtle at first but tend to worsen over time.
If you have been exposed to chemicals, take medications that can damage bone marrow, or have had cancer treatment, talk to your doctor about monitoring. Regular blood testing every 3 to 6 months can catch blood count changes early. People with inherited conditions that increase risk may need more frequent testing. Early detection makes treatment more effective and improves outcomes.
Diet and lifestyle cannot cure aplastic anemia, but they support your treatment and help prevent complications. Eat iron-rich foods, leafy greens, and lean proteins to support blood cell production. Avoid raw or undercooked foods that could cause infections. Practice careful hand hygiene and stay away from people who are sick. These steps help your body cope while medical treatment works to restore bone marrow function.
Most cases of aplastic anemia are not inherited and happen spontaneously. However, rare inherited conditions like Fanconi anemia, dyskeratosis congenita, and Shwachman-Diamond syndrome can cause bone marrow failure. If you have a family history of aplastic anemia or bone marrow problems, genetic counseling may be helpful. Your children are unlikely to inherit aplastic anemia unless you have one of these rare genetic syndromes.