Normal range of platelet count

Platelets are referred to as "platelet count." The main function of platelets is to aggregate and form blood clots when blood vessels are damaged, preventing bleeding.

The normal platelet count range is (100–300) × 10^9/L. When the platelet count falls below the lower limit of the normal range, i.e., below 100 × 10^9/L, it may indicate thrombocytopenia, which could be related to impaired platelet production, hypersplenism, genetic factors, etc. This condition may lead to varying degrees of bleeding and requires timely diagnosis and treatment.

When the platelet count exceeds the upper limit of the normal range, i.e., greater than 300 × 10^9/L, it may indicate thrombocytosis, which could be associated with myeloproliferative disorders, polycythemia vera, and other factors. This condition may increase the risk of thrombosis and embolism and also requires timely diagnosis and treatment.

Abnormal platelet counts may be a sign of various diseases, including infections, autoimmune diseases, and bone marrow disorders. Therefore, further investigation is necessary when the platelet count falls outside the normal range.