Pre-operative instructions: 1. Previous diseases and surgical history should be informed to the doctor. 2. Do not wear pantyhose, please wear loose fitting clothes and pants. 3. Please do not wear makeup on the day of surgery and do not drive to the hospital. 4. Please take a shower and wash your hair the day before surgery. 5. Female patients should avoid menstrual period. 6. Before the operation, you should have a physical examination of blood routine, coagulation routine, surgical synthesis, liver and kidney function, ECG, chest X-ray, etc. If necessary, you should have a physical examination. 7. Patients under general anesthesia should fast from food and water for 10 hours, while patients under local anesthesia can eat and drink normally. 8. Under 18 years old and the elderly need to be accompanied by family members. 9. Please do not bring any valuables into the operating room, and please turn off your cell phone after entering the operating room. 10. Please bring the manual for medical insurance and cooperative medical treatment.