The adverse reactions of low molecular weight heparin sodium are usually as follows:

　　1, there can be a significant reduction of platelet, and sometimes the reduction is more serious when the skin capillaries ooze blood.

　　2, there may be skin necrosis at the injection site, generally manifested as local purpura, and sometimes the pain is more serious.

　　3, some patients can also appear abnormal liver function, such as elevated aminotransferase, and even local larger hematoma.

　　4. Peptic ulcer may occur in some patients during the injection of this drug, especially when combined with non-steroidal drugs, such as aspirin.

　　5. There is an increased risk of bleeding if chlorbenzylothiazolidine is taken during this medication.

　　Therefore, during the use of this drug, the patient's physical condition needs to be observed in time, and it needs to be used strictly in accordance with the requirements of the doctor. If the body has obvious discomfort or bleeding tendency, it needs to go to the hospital for further consultation in time, so as to prevent delay and further aggravation of the condition.