Millimeter is the smallest unit of measurement used in our daily life. Minimally invasive gynecological technologies measured in millimeters have been born: the mature application of advanced visualization systems such as electronic colposcope, hysteroscope and laparoscope enables doctors to see the actual situation of the uterine and abdominal cavities through a small lens that probes into the body, solving the problems that originally required 10-20 cm surgical incisions. The change from centimeters to millimeters reduces women’s pain and increases the safety and humane care of surgery. Therefore, minimally invasive technology is not only a technology, but also an art. I. What diseases can be treated by minimally invasive gynecological laparotomy? 1.Diagnosis of various difficult diseases: such as acute abdominal pain, chronic pelvic pain, uterine perforation, infertility, dysmenorrhea, etc. 2.Treatment: various types of ectopic pregnancy, conservative treatment of ectopic pregnancy (preservation of fallopian tubes), pelvic adhesions, endometriosis, ovarian endometriosis cysts, benign ovarian teratoma, ovarian cysts, uterine fibroids, various pelvic masses, tubal sterilization, tubal recanalization. Can one operation treat gynecological diseases and gallbladder stones at the same time? If a patient has gynecological diseases (such as uterine fibroids, ovarian cysts, ectopic pregnancy, etc.) and gallbladder stones and cholecystitis at the same time, the traditional surgery is to perform cholecystectomy in surgery first, with a hospital stay of 7~10 days, and then live in gynecological surgery for 2~3 months. family members need to spend more time to travel to and from the hospital to take care of the patient. If laparoscopic minimally invasive gynecological and surgical joint surgery is implemented, only one hospitalization is needed, about 3~5 days, one anesthesia, gallbladder and gynecological pelvic mass can be removed at the same time, and the patient can go down to the ground in 24 hours, eat early and recover quickly after surgery. Third, can the “eye” surgery be complete? Some patients have concerns that “eye” surgery is not as intuitive and reliable as open surgery, but it is not. Laparoscopic surgery is made easier and more reliable by improving the surgical operation method and surgical instruments. Laparoscopic surgery has a clearer field of view, more detailed surgical operation, and less possibility of complications. At present, the United States, Singapore and other countries have legislation, such as doctors can not be the first to use the “eye” surgery, to the patient increased pain, it is considered illegal. Fourth, obese patients can implement laparoscopic surgery to treat gynecological diseases? Obese patients are more suitable for laparoscopic surgery. Obese patients to implement open surgery, because the incision is large and deep, subcutaneous fat is easy to liquefy, so easy to cause postoperative incision infection, incisional hernia, etc.. In addition, the respiratory function of obese patients is significantly lower than that of those with normal weight, and postoperative complications such as pulmonary infection and pulmonary atelectasis are significantly higher than those with normal weight. If laparoscopic surgery is performed, there is no difference between obese patients and normal weight patients in terms of wound size, duration of surgery, damage to the muscle and incidence of postoperative complications. The incidence of complications such as incisional infection and pulmonary infection is lower in laparoscopic surgery than in open surgery. Therefore, obese patients are more suitable for laparoscopic surgery. V. How to remove large pelvic masses (such as uterine fibroids and cysts in the penumbral direction) from the small opening? In case of ectopic pregnancy and removal of fallopian tubes, the resected material can be easily and directly removed from the small orifice. If it is a cystic ovarian mass, the fluid inside the cyst can be sucked out first with a thin puncture needle to reduce the size of the mass and remove it from the small opening in the abdominal wall. In the case of larger solid masses, such as uterine fibroids, the masses can be cut into strips with special instruments and then removed through small incisions in the abdominal wall. All of the above specimens should be placed in a specimen bag and removed through a small incision in the abdominal wall. The entire mass can also be removed from the vagina. The large masses are removed without large scars on the abdominal wall, with only 3-4 small incisions (0.5-1 cm), and no signs of surgery are visible at all after healing.