Abstract: Objective To investigate the therapeutic effect of modified Sturmdorf suture after cervical conization on patients with cervical intraepithelial neoplasia (CIN) confirmed by cytological examination under colposcopy. Methods 64 patients with CIN confirmed by colposcopy cytology in the First People's Hospital of Aksu District from January 2020 to January 2022 were selected as the study subjects. They were divided into observation group and control group by random number table method, with 32 patients in each group. The patients in the control group were treated with traditional surgery and suture, while the patients in the observation group were treated with modified Sturmdorf suture after cervical conization. The relevant perioperative indexes of the two groups were compared, and their clinical efficacy, postoperative complications, bleeding and satisfaction with cervical appearance were compared. Results The intraoperative blood loss in the observation group was less than that in the control group, the operation time was longer than that of the control group, and the incision healing time and hospital stay were shorter than those in the control group (P<0.05). There was no significant difference in the total effective rate between the observation group and the control group (P>0.05). The incidence of postoperative complications such as cervical mucosa hyperplasia, cervical canal stenosis, pelvic inflammatory disease and postoperative bleeding in the observation group was significantly lower than that in the control group, and the satisfaction degree of cervical appearance in the observation group was significantly higher than that in the control group (P<0.05). Conclusion The modified Sturmdorf suture after cervical conization is effective for the patients with CIN disease confirmed by cytological examination under colposcopy. Compared with traditional surgery and suture, it can reduce the amount of bleeding and operation time of the patients during operation, promote the early recovery of the patients, and reduce the postoperative complications and bleeding of the patients. Moreover, the satisfaction of cervical appearance is good, which is worthy of clinical application and promotion.

Key words: cervical conization, sturmdorf suture, cytological examination under colposcopy, cervical intraepithelial neoplasia, complication