A 48-year-old member asked:
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What causes a high platelet count in a blood test?

1 doctor answer
Dr. Martin Rubenstein
44 years experience in Hematology and Oncology
Many things.: High platelets can occur with bleeding, iron deficiency and inflammatory conditions such as rheumatoid arthritis. They can be high due to a blood disorder (myeloproliferative neoplasia). Platelets also can be elevated in response to serious illnesses. The cause should be investigated, found and if possible treated.
Answered on Apr 12, 2019
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