Retrospective analysis of the clinical data of anastomotic stenosis after procedure for prolapse and hemorrhoids (PPH) surgery and no stenosis in the same period of operation, and to determine the risk factors of anastomotic stenosis.

112 cases with anastomotic stenosis after PPH surgery were retrospectively collected as case group from January in 2015 to June 2020 in First Hospital of Xinjiang Medical University and ChangJi Branch. The control group was collected according to the 1∶1 matching principle during the same period of hospitalization. Risk factors of anastomotic stenosis were analyzed by logistics regression.

The result showed that the scar constitution (χ²=62.910, P＜0.001), postoperative stool is not formed (χ²=76.522, P＜0.001), previous surgery history (χ²=5.448, P=0.032)significantly related to the anastomotic stenosis after PPH. Logistic regression analysis showed that the scar constitution (OR=5.238, 95% CI: 0.038~0.953; P＜0.05) and postoperative stool which was out of the shape (OR=8.547, 95% CI: 0.036~0.3761; P＜0.05) were all independent risk factors for anastomotic stenosis after PPH.

A variety of factors were responsible for the anastomotic stenosis after PPH. In order to minimize postoperative anastomotic stenosis, it is necessary to strictly master the indications for operation, patients with long-term fecal dysplasia should take active medical adjuvant treatment before and after surgery, establish a good diet and defecation mechanism, which is of great significance to minimize postoperative anastomotic stenosis.