A platelet count measures the average platelet level in a person’s blood. High or low platelet levels can increase the risk of clotting or excessive bleeding. Understand platelet count variations – from low to normal to high ranges in humans. Explore the implications of platelet levels on overall health. Gain insights into the causes and potential consequences of low or high platelet counts. Normal range: 150,000–450,000 platelets per microliter. Low platelet count (thrombocytopenia): Below 150,000 platelets per microliter. High platelet count (thrombocytosis): Above 450,000 platelets per microliter. Why Is It Important to Test Platelets? Testing your platelet levels is important because abnormal counts can indicate health concerns: A normal platelet count is between 150,000 to 450,000 per microliter of blood. A high platelet count over 450,000 can lead to blood clots, while a low count below 150,000 increases bleeding risk.
