Indications for laparoscopic surgery: (1) pelvic inflammatory mass, adhesion decomposition, tubectomy; (2) surgical treatment of benign ovarian tumors: (1) ovarian cyst debridement; (2) tubal or ovarian benign tumor resection; (3) unilateral or bilateral adnexal resection; (3) surgical treatment of uterine fibroids or myometriosis; (1) uterine fibroid nucleation (preservation of uterus); (2) uterine sub (1) cervical cancer stage Ia1-IIa1: extensive hysterectomy + pelvic lymph node dissection, extensive cervical excision, vaginal lengthening (2) endometrial cancer: subextensive hysterectomy + pelvic lymph node dissection 5. surgery to preserve ovarian function before radiotherapy for advanced cervical cancer in young patients: bilateral ovarian suspension; 6. pelvic masses of unknown origin and abdominal pain, requiring exploration for clear diagnosis