Objective:To investigate the effect of laparoscopic folding sutures on myometrial thickness,menstrual cycle and pregnancy outcome in patients with cesarean scar diverticula.Methods:A total of 84 patients with cesarean section scar divertic-ula were included as research subjects.Based on the treatment plan,they were divided into two groups:hysteroscopic group and hysteroscopic-laparoscopic combined group,with 42 cases in each group.The hysteroscopic group underwent hysteroscopic sur-gery,while the hysteroscopic-laparoscopic combined group received treatment using combined hysteroscopic-laparoscopic fold-ing suture technique.The treatment effectiveness rate,hospital stay,operative time,intraoperative blood loss,menstrual period,pregnancy status,diverticulum depth,diverticulum length,and improvement rate of uterine lower segment muscle layer thick-ness were recorded and compared between the two groups.Results:There was no statistically significant difference in the effec-tive treatment rates between the two groups(P>0.05).The combined hysteroscopic and laparoscopic group had longer hospi-tal stay,surgical time,and intraoperative blood loss compared to the hysteroscopic group(P<0.05).At 6 months postopera-tively,the menstrual period duration was lower in the combined group compared to the hysteroscopic group(P<0.05).The pregnancy rate and uterine lower segment muscle layer improvement rate were higher in the combined group than in the hyste-roscopic group(P<0.05).1 month after surgery,the diverticulum depth and length were lower in the combined group com-pared to the hysteroscopic group(P<0.05).Conclusion:Both hysteroscopic surgery and combined hysterolaparoscopic folding suture have better therapeutic effects on the treatment of cesarean section scar diverticulum,although the application of folding suture will increase the operation time and intraoperative bleeding,but this surgical method is beneficial to accelerate the im-provement of patients'menstruation,has a better effect on the repair of diverticulum repair,and helps to improve the pregnancy rate.