If something else causes your platelet count to be high, such as an infection or operation, this is known as reactive thrombocytosis. Generally they only occur with a platelet count over 1000 million per ml, and only in the presence of other risk factors such as dehydration.
In this way, what causes platelet count to be high?
A normal platelet count ranges from 150,000 to 450,000 platelets per microliter of blood. If you have thrombocytosis caused by a bone marrow disorder (essential thrombocythemia), your bone marrow overproduces the cells that form platelets (megakaryocytes), releasing too many platelets into your blood.
What is the treatment for high platelets?
Currently, hydroxyurea plus aspirin is the standard treatment for people who have primary thrombocythemia and are at high risk for blood clots. Anagrelide. This medicine also has been used to lower platelet counts in people who have thrombocythemia.