To Evaluate the Safety and Effectiveness of Intrauterine Adhesion Preventer in the Prevention and Treatment of Intrauterine Adhesions, a Prospective, Multicenter, Randomized Controlled Clinical Trial

Inclusion Criteria: * Patients clinically diagnosed with intrauterine adhesions and with surgical indications (referring to those with fertility requirements or obstructed menstrual blood drainage) ② Women aged 20-40 years old; ③ Subjects voluntarily participated in the trial and signed informed consent. Exclusion Criteria: * ① Patients with obviously abnormal uterine cavity shape after surgery; those who could not clearly separate the normal uterine cavity anatomical morphology (i.e. bilateral or unilateral fallopian tube openings were not visible); those with reproductive organ malformations and uterine cavities that were too large or too small; those with recent uterine perforation; those with cervical insufficiency. * Those with a history of intrauterine adhesions and treatment; * Those with endometrial tuberculosis or suspected endometrial tuberculosis; * Those with adenomyosis or uterine fibroids\>4cm; * Those with a history of malignant tumors or suspected malignant tumors; * Those with acute and chronic intrauterine infection and genital infection; * Those with unexplained vaginal bleeding or suspected uterine malignant lesions; * Those with severe anemia and abnormal coagulation function; those with a history of thrombosis; ⑨ Those in the acute stage of various diseases or severe systemic diseases; * Those with severe mental illness and physical weakness who cannot tolerate this operation; ⑪ Those with severe heart, liver, and kidney function diseases; ⑫ Those with contraindications to anesthesia or surgery; ⑬ Those who have participated in clinical trials in the past three months. * Those who are considered unsuitable for inclusion by the researchers.