Question
Why would a child’s platelets be high, and what could cause it? The doctor said during the recent physical examination that the platelets are elevated, and suggested a recheck blood routine. What does this mean?
Answer
Primary thrombocytosis is commonly seen in bone marrow disorders such as chronic myeloid leukemia, polycythemia vera, and primary thrombocythemia. Reactive thrombocytosis is common in acute and chronic inflammation, iron deficiency anemia, and cancer patients. In such cases of thrombocytosis, the platelet count generally does not exceed 500×10^9/L, and the platelet count will quickly decrease after treatment and improvement of the condition.