Electrocoagulation has the following hazards: 1. The speed of hemostasis while electrocoagulation is relatively fast, which may lead to damage and embolism of the adjacent blood vessels, in addition, the temperature heat of electrocoagulation is relatively high, which may also lead to side damage to the adjacent organs, most commonly occurring in the adipose tissue of the skin, leading to fat liquefaction, which may affect the healing of the incision to a certain extent after the operation and require several drug changes; 2. A kind of energy platform, easy to appear some nerve damage, so in the time of fine operation, should be careful, pay attention to avoid the emergence of side damage and increase the patient unnecessary pain. In addition, electrocoagulation is sometimes not particularly complete, because some patients have increased blood pressure after surgery, which can lead to the shedding of blood scabs and secondary bleeding, which is unsafe compared to ligation.