2. There should be no (bacterial) lesions in front of the operation.
3, in order to prevent infection, avoid menstruation can not do surgery;
4. Do not take drugs containing aspirin within two weeks before operation, because aspirin will reduce platelet coagulation function;
5. Patients with hypertension and diabetes should inform the doctor of their condition at the time of initial diagnosis, so that the attending doctor can confirm the operation plan;
6. Ensure good health before operation, and there is no infectious disease or other body inflammation;
7. Don't make up before operation.