Inclusion Criteria:  Indications: fertility desire, periodic pelvic pain; Women aged 18-40 years; Moderate to severe intrauterine adhesion(ESGE Grade II-IV); All enrolled women provided written informed consent and agree to the entire study protocol prior to surgery  Exclusion Criteria:  Contraindications: such as severe medical diseases, pregnancy status, reproductive tract infection, malignant tumor; History of uterine artery embolization; Infertility caused by male factors or ovarian dysfunction or premature ovarian failure