Minimal trauma has always been a tenet of surgery, and a higher level pursued by the surgical community. In 1969, Wheeless reported the first single-port laparoscopic tubal ligation, and to date, the first single-port laparoscopic laparoscopic surgery has been performed for 40 years. Single-port laparoscopic surgery has been performed for 40 years. Currently, single-port laparoscopic surgery is mainly performed through the umbilical cord. Although it is still in the exploration stage, single-port laparoscopic surgery has become the most feasible “scarless” technique at this stage because of its obvious cosmetic effect, light postoperative pain, fast recovery, low rate of poke hernia and poke infection, and other advantages. The umbilicus is the only inherent scar on the body. The umbilical incision of single-port laparoscopic surgery is about 10-20 mm long, because the skin folds of the umbilicus can cover the incision, thus achieving the purpose of scarless surgery with satisfactory cosmetic effects, and at the same time reducing postoperative pain, thus reducing the amount of intraoperative and postoperative anesthesia and analgesic drugs. The patient’s postoperative recovery is fast, the hospital stay is short, and the hospital costs are reduced accordingly. This is a photo of a case I did after single-port laparoscopic cholecystectomy, which is the first day after the operation and was discharged on the second day after the operation.