The platelet value of 371×10^9/L is slightly higher than the normal value. The causes of slightly high platelets may include physiological factors, primary thrombocythemia, acute infectious inflammation and so on. 1. Physiological factors: after strenuous exercise or late menstruation, mid-late pregnancy may cause physiological high platelets. 2. Primary thrombocythemia: due to the abnormal proliferation of megakaryocytes in the bone marrow, causing slightly high platelets. 3. Acute infectious inflammation: such as acute appendicitis, acute cholecystitis, etc. Inflammation destroys platelets, and the bone marrow compensatory production of platelets increases. Caused by slightly high platelet value, there may also be other reasons, such as iron deficiency anemia, after splenectomy, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, and standardized treatment under the guidance of the doctor.