The normal platelet count for adult males is 150 to 450 billion per liter of blood, notes Mayo Clinic. Platelet counts outside of this range may be indicative of a medical condition or be the result of medication.
An abnormally low platelet count is a condition known as thrombocytopenia, according to Mayo Clinic. A high platelet count is known as thrombocytosis. If an individual is otherwise healthy, a platelet count outside of the normal range may not warrant concern. Additional tests by a hematologist may be necessary to diagnose the cause of abnormal platelet levels. The normal value for platelets does not vary between men and women.