(1) Ensure adequate rest and sleep a few days before operation, quit smoking and drinking two weeks before operation, and stop taking drugs containing aspirin and vitamin E. ..
(2) The patient should inform the doctor in detail whether there is a serious illness; Have a history of drug allergy;
(3) There is no clear communication history; Whether there is a tendency of scar hyperplasia.
(4) Eating and drinking are forbidden for 0/2 hour/kloc, and drinking is forbidden for 4 hours before operation. Blood items, blood sugar and electrocardiogram need to be tested.
(5) It is not suitable for surgery during menstrual period, pregnancy and lactation for 6 months.