The normal value of platelet count is (100-300)×10^9/L. If the platelet count is lower than 100×10^9/L, then the platelet count is low. The lower the platelets, the greater the impact on the body, the specific symptoms and reactions include: 1, skin and mucous membrane bleeding: low platelets are prone to various bleeding symptoms, such as bleeding spots on the skin, nasal bleeding, oral bleeding and gum bleeding; 2, increased menstrual flow: due to low platelets, the coagulation function is relatively poor, so women will experience increased menstrual flow, difficult to stop bleeding and prolonged menstrual period and other symptoms. It is recommended to go to the hospital to check the blood routine in time; 3, organ bleeding: platelets have the role of hemostasis, if there is a serious platelet reduction phenomenon, the body’s hemostatic function will be affected, thus causing bleeding of organs, such as gastrointestinal bleeding, urinary bleeding, cerebral bleeding, etc. Patients often show vomiting blood, blood in the stool, hemoptysis, etc., and in serious cases, even life-threatening. In addition, some patients may suffer from fatigue and weakness, and lack of energy.