Doctors treat an elevated platelet count, called thrombocytosis, by targeting its root cause. Thrombocytosis can result from a blood or bone marrow disease, which can overproduce and elevate the amount of platelets in th... More »

Causes of a high platelet count include cancer, recent spleen removal and anemia caused by premature destruction of the red blood cells, notes MedlinePlus. A normal platelet count ranges from 150,000 to 400,000 platelets... More »

In reactive thrombocytosis, the platelet count is elevated due to another disorder, such as an infection, bleeding, iron deficiency, cancer, destruction of red blood cells, removal of the spleen, inflammatory disease or ... More »

Elevated platelet levels or thrombocytosis is caused by a disorder of the bone marrow, known as primary thrombocythemia. It occurs in middle age, and affects women more than men, reveals Mayo Clinic. More »

Effects of a high blood platelet count, or thrombocytosis, can include stroke, heart attack and blood clots due to blood vessel blockage, according to the Cleveland Clinic. After thrombocytosis has been in an individual'... More »

An elevated platelet count generally means one of two things: reactive thrombocytosis or essential thrombocythemia. Reactive thrombocytosis means that an underlying condition has elevated the platelets, while essential t... More » Health Medical Ranges & Levels

High platelets are classified as either primary thrombocythemia, which can be inherited but does not have another known cause, and secondary thrombocytosis, which can be a symptom of another condition such as anemia, blo... More » Health Medical Ranges & Levels