With the development of modem medical technology,the change of operation concept and the innovation of operation mode,more and more patients are able to cure low rectal cancer while achieving the goal of retaining the anus.Anastomotic fistula is the most serious complication after anal sphincter preservation for low rectal cancer,and it is also the main cause of death,and the factors are complicated.In order to prevent anastomotic leakage and reduce the harm caused by it,most scholars at home and abroad recommend the use of preventive stoma.This article reviews the application of prophylactic stoma in anal sphincter preservation for low rectal cancer,and provides valuable information for the application of preventive stoma in anal sphincter preservation for low rectal cancer.

With the further development of endoscopic technology and the application of minimally invasive concept in the diagnosis and treatment of colorectal surgery diseases, the diagnosis and treatment of colorectal related diseases have undergone tremendous changes. Surgical diagnosis and treatment of colorectal diseases have achieved great results in the minimally invasive field, ranging from traditional transabdominal surgery to laparoscopic surgery, transvaginal surgery, and transvaginal specimen removal. One of the most cutting-edge surgical methods in the field of minimally invasive colorectal surgery at present, this method avoids the incision in the abdominal wall by taking specimens through the rectum and vagina, thus further minimally invasive colorectal surgery. The NOSES technology combines the advantages of traditional laparoscopic surgery with the concept of modern minimally invasive surgery. It embodies the characteristics of minimally invasive, fast track rehabilitation in surgery, functional surgery and other concepts on the basis of ensuring the operation effect. This paper mainly summarizes the relevant experience, experience and experience in the development of colorectal surgery diagnosis and treatment by carrying out the nose technology at home and abroad.