The normal reference range for platelets is 100 to 300×10^9/L. A value of 362×10^9/L is slightly on the high side and requires continued monitoring and may be left untreated for the time being. However, a single platelet excess does not have much clinical significance, and does not exclude the possibility of dehydration blood concentration. Generally need to regularly monitor blood routine, observation period dynamic changes to decide whether to need further diagnosis and treatment. If the platelet is 362×10^9/L, there is no need for further diagnosis and treatment for the time being, only need to monitor the blood routine regularly, observe the dynamic change of platelet; if the platelet is further elevated, more than 450, you need to consult the hematology department, improve the relevant examination, to clarify the cause of thrombocytosis, and then treat the cause of the disease. If it is determined that the primary thrombocytosis belongs to myeloproliferative tumors, it is often necessary to take oral chemotherapy drugs or apply interferon therapy; if it is determined that it is secondary thrombocytosis, it is necessary to search for and treat the secondary factors, and when the secondary factors can be removed, the elevated platelets will be reduced to normal.