1. Hysteroscopy: diagnosisand treatmentof various difficultintrouterinediseases

(1)Severe introuterine adhesion.

(2) Uterine malformation diseases: such as saddle-shaped uterus, bow-shaped uterus.

(3) Uterine bleeding disorders: such as giant submucosal myoma.

(4) Pregnancy-related diseases: such as cesarean incision pregnancy,cornualpregnancy and cesarean incision diverticulum repair, etc.

2.Laparoendoscopic single-site surgery (LESS): perfect practice of minimally invasive concept: minimally invasion, beautiful incision, and fast recovery

(1)Surgery for benign gynecological diseases, such as hysterectomy, uterine fibroid excision, tubo-ovarian surgery.

(2) Surgery for early malignant gynecological tumors, including early cervical cancer, endometrial cancer, ovarian cancer, etc.

3.Combined surgery of laparoendoscopic single-site surgery (LESS) and hysteroscopy,

4. Vulvar, cervical and vaginal diseases: carry out high qualitydiagnosis and treatment, such ascolposcopy and biopsy, LEEP