What is thrombocythemia?
Thrombocythemia is a rare blood disorder that causes the body to make too many platelets. Platelets are small blood cells that help stop bleeding by forming clots. When platelet levels become too high, blood may clot too easily or, in some cases, bleeding problems can occur.
Thrombocythemia develops when the bone marrow produces too many platelets. This is often linked to changes in certain genes that affect blood cell production. The condition is more common in older adults, though it can occur at any age.
Some people do not notice symptoms right away. Others may develop problems related to blood flow or unusual bleeding over time.
Symptoms and Causes
Thrombocythemia affects people differently. Symptoms can range from mild to more serious depending on platelet levels and overall health.
Common symptoms may include:
- Headaches
- Dizziness or lightheadedness
- Fatigue or weakness
- Easy bruising
- Nosebleeds or bleeding gums
- Burning, redness, or pain in the hands and feet
- Blood in the stool
- Excess bleeding after injury or surgery
In some cases, the condition can lead to blood clots in the arms, legs, brain, or other parts of the body.
How is it diagnosed?
Healthcare providers use several tests to diagnose thrombocythemia and rule out other blood disorders. Evaluation usually begins with a review of symptoms, medical history, and a physical exam.
Common tests may include:
- Complete blood count (CBC) to measure platelet levels
- Blood smear to examine blood cells under a microscope
- Bone marrow biopsy to check how blood cells are being made
- Genetic testing for specific mutations linked to the condition
These tests help determine the cause of elevated platelets and guide treatment decisions.
How is it treated?
Treatment focuses on lowering the risk of blood clots and managing symptoms. Some people with mild disease may only need regular monitoring.
Treatment options may include:
- Low-dose aspirin to help prevent clotting
- Medicines that reduce platelet production, such as hydroxyurea, interferon, or anagrelide
- Management of related health conditions like high blood pressure, diabetes, or high cholesterol
- Plateletpheresis, a procedure that removes excess platelets in emergency situations
Most people with thrombocythemia can continue normal daily activities with ongoing care and regular follow-up visits.
