On the eve of the Dragon Boat Festival, I received a phone call from a friend I met 10 years ago. In addition to the polite words of Dragon Boat Festival, he asked me if laparoscopic surgery could make the rectal cancer surgery clean. 10 years ago the friend’s mother was a patient under my supervision, with lower rectal cancer, 3 cm from the anal verge, underwent radical transabdominal perineal rectal cancer surgery, resected the anus, and left lower abdominal wall after the surgery to leave a stoma bag. The elderly woman was a senior intellectual and was very dissatisfied with the placement of the abdominal wall ostomy bag due to the odor of improper stoma care that affected her social activities in the early stage. Postoperative chemotherapy was standardized and she was very cooperative with the follow-up. By the 5th year of follow-up she became very satisfied with her choice of surgical approach. Later I learned the reason, she knew several rectal cancer patients who chose to preserve the anus after the operation of recurrence of the cross grain book, and the surgical efficacy made her feel that it was still worth hanging the stoma bag. So 5 years after the surgery, I became her VIP doctor, the kind of doctor she could contact for advice. The old lady was hospitalized with a relative overseas who had rectal cancer, and the doctor in charge recommended laparoscopic radical rectal cancer surgery, but she expressed doubts about the thoroughness of the surgery. She believed that rectal cancer is less likely to recur and more radical after surgery without anal preservation. Big medical data is useful for medical decision making, but it is basically useless for individual decision making, and it makes sense that good results for individuals are the best. In the past 10 years, the principles of surgical treatment for rectal cancer have remained unchanged, but the surgical procedures and theories have developed more abundantly, and the theory of rectal columnar resection and rectal mesentery has greatly contributed to the reduction of postoperative recurrence. At present, due to the application of laparoscopic technology in rectal cancer, radical rectal cancer treatment with anus preservation has become simple, and the clear enlargement of pelvic field and the application of laparoscopic cutting closures make radical rectal cancer treatment seem much simpler. Traditional treatment of rectal cancer mostly consists of lower abdomen incision around the umbilicus, which is about 15-20cm long, and it is relatively difficult to get out of bed in the early postoperative period, while laparoscopic radical rectal cancer surgery nowadays mostly adopts 4-5 holes in the abdomen, and a complete radical surgery can be performed with a wound of about 4cm long in the left lower abdomen, and because the field of view is more open under laparoscopy, the liver, gallbladder, stomach and duodenum, small intestine and large intestine, the whole colon, rectum The pelvic organs, peritoneum, etc., make the focal micro metastasis become early detection, the enlarged field of view can clearly clear the lymph nodes of the root of the inferior mesenteric artery, distinguish the ureter, reproductive vessels, male seminal vesicles, the protection of the pelvic floor plexus becomes more delicate up, the rectal mesenteric resection is more complete, the tumor eradication is standardized; the postoperative bed and recovery become faster. Large data analysis shows that there is no difference between laparoscopic radical rectal cancer surgery and conventional open surgery, and even some operations are more thorough. Therefore, there is no need to worry that laparoscopic radical rectal cancer surgery is not complete. Surgeons will choose the surgical procedure that is most beneficial to the patient and in which they are most proficient. No surgical modality is a panacea, and laparoscopic surgery for rectal cancer also has its own requirements. At present, most surgeons believe that laparoscopic low anterior resection of rectum can be performed in the following cases: 1 upper middle rectal cancer with tumor diameter less than 5cm; 2 lower middle rectal cancer with anal canal rectal ring and anal raphe intact and no tumor invasion after removal of 2cm from the lower edge of the tumor; 3 rectal finger diagnosis of tumor 4-5cm from the anal edge. postoperative abdominal scar. In contrast, the traditional surgery for rectal cancer without anus preservation is radical transabdominal perineal rectal cancer, that is, the surgery of digging out the anus and making lower abdominal colostomy at the same time, at present, it is also possible to take radical transabdominal perineal rectal cancer laparoscopy, and the surgical effect is also beyond question. The indications for laparoscopic radical surgery for perineal rectal cancer are: 1. invasive, poorly differentiated rectal cancer within 5cm from the anal verge; 2. rectal cancer within 3cm from the anal verge; 3. anal canal and perianal cancer. Trust your supervising doctor to provide you with what he thinks is the optimal technique and choice. The original intention of every surgeon in medicine is: to use his knowledge and technique to cure and save people through his knife (instrument). Laparoscopic radical surgery for rectal cancer can really be surgically complete. Laparoscopic radical rectal cancer surgery is a safe and reliable surgical method with tiny abdominal wall incision, complete radical treatment, rapid postoperative recovery.