Endoscopic technology is undoubtedly a revolutionary event in the field of modern medicine, which has enabled the diagnosis and treatment of diseases from macroscopic to microscopic and from grossly invasive to minimally invasive. The so-called endoscopy refers to the diagnosis or treatment of diseases through the body’s natural orifices or tiny incisions by placing optical mirrors with a diameter of 1 cm or even smaller, including the well-known gastroscopy, enteroscopy, etc., as well as the flourishing and unexplored endoscopic surgery. Gynecology is the birthplace of minimally invasive technology and is the most active and intensive field of endoscopic application, including laparoscopy, hysteroscopy and colposcopy. The following is a brief introduction to gynecologic endoscopy. Gynecological laparoscopy: Compared with the traditional surgery, laparoscopic surgery can be performed by making 2-3 small incisions of 0.5-1.0 cm on the abdominal wall of patients, which can be done only by opening the abdomen, so it is also called “keyhole surgery” or “eye surgery”. “eye surgery”. The patient’s pelvic or abdominal cavity is presented on the surveillance screen through the laparoscope, and the surgeon uses special surgical instruments through a small incision in the abdominal wall to complete the surgery, thus having the following characteristics: (1) small incision and little trauma, light postoperative pain, and generally no longer need pain medication after surgery. (2) Because the abdominopelvic cavity is closed during the operation, there is no contact with air, gauze and gloves, so there is little interference with the abdominopelvic cavity and quick recovery after the operation, and a semi-liquid diet can be eaten the next day after the operation, and people can get out of bed and resume normal life and work after one week. (3) No obvious scars on the abdomen. Traditional surgery, especially malignant tumor surgery, has long scars and affects appearance, such as radical surgery for cervical cancer, which has scars of 15 to 20 cm or more, but laparoscopic surgery basically leaves no scars, which is especially suitable for women’s cosmetic needs. (4) Short postoperative hospitalization time: Because of fast recovery and early feeding after laparoscopic surgery, the postoperative hospitalization time is shorter than that of cesarean surgery, the shortest being three days and the longest being five days. At present, most gynecological surgeries can be completed under laparoscopy, such as ovarian tumor debridement, uterine fibroid excavation, hysterectomy, ectopic pregnancy surgery, infertility surgery, etc. Nowadays, laparoscopic surgery has been gradually applied to the field of early malignant tumors in gynecology, showing obvious advantages over traditional open surgery. During laparoscopic surgery, carbon dioxide gas is injected into the abdominal cavity to expand the abdominal cavity to provide a spacious surgical field of view. The pneumoperitoneum and carbon dioxide can have certain effects on the human respiratory and cardiovascular systems, so patients with severe respiratory and cardiovascular diseases and elderly patients should choose carefully. The following issues should also be noted after surgery: (1) within 12 hours after surgery, adopt a depillowed flat position with the head on one side to prevent vomit aspiration into the trachea; (2) as most patients do not feel pain after surgery, do not neglect to massage the patient’s waist and legs, and turn the patient once every half hour to promote blood circulation and prevent decubitus ulcers; (3) the urinary catheter can be removed after the fluid infusion on the same day, and encourage the patient to get out of bed; ( (4) 6 hours after surgery, let the patient eat a small amount of liquid diet, such as thin rice soup, noodle soup, etc.. Do not give the patient sweet milk, soy milk powder and other sugary drinks; (5) the laparoscopic incision is only 1 cm, so the abdominal dressing can be removed after a week, and you can take a shower, and then you can gradually resume normal activities. It is still important to pay attention to proper and light activities before a week to make the body recover as soon as possible. Laparoscopy has become the obvious choice for gynecological surgery, and in some hospitals it has accounted for 80% of gynecological surgery, bringing a boon to the majority of patients. Hysteroscopy: As the name implies, hysteroscopy is a method of examining and operating on the uterine cavity. Before hysteroscopic surgery, most of the diseases in the uterine cavity were treated by hysterectomy, which was a bit like “I would rather kill a thousand by mistake than miss one”. The hysteroscopy is not only a reproductive organ, but also an endocrine organ and a sexual organ, so it is disrespectful to women to kill the innocent. Hysteroscopy has become the gold standard for the diagnosis of intrauterine lesions, and hysteroscopic surgery has become the preferred surgical method for benign intrauterine lesions. The hysteroscopy can be performed by infusing saline or sugar water into the uterine cavity and then inserting a 3-5mm examination mirror to examine the uterine cavity for a clear diagnosis, and if necessary, a 9mm electrosurgery mirror can be inserted under anesthesia to perform intrauterine surgery, avoiding the pain of opening the abdomen and the disadvantages of removing the genitals. The procedure has been used for most intrauterine diseases, including submucosal fibroids, endometrial polyps, uterine adhesions, longitudinal septum and endometrial resection. Hysteroscopy combined with laparoscopy for female infertility has become a routine method for surgical treatment of infertility, bringing a boon to patients with infertility. Colposcopy: Cervical diseases are plaguing more and more women due to changing lifestyles. In particular, the increasing incidence of cervical precancerous lesions is making female patients fearful. Colposcopy can magnify the observed image 10 to 60 times and find tiny lesions that cannot be detected by the naked eye. With this magnification effect, doctors can clearly see the blood vessels on the epidermis of the cervix and detect pre-cancerous lesions of the cervix, providing a basis for early diagnosis of cervical cancer and enabling patients to receive effective treatment in advance, resulting in a much higher cure rate of cervical cancer. To perform colposcopy, simply expose the vagina and cervix with a speculum, point the colposcope lens at the cervix about 20 cm from the vaginal opening, adjust the focus, and observe the magnified cervical images through the computer screen. The computer can store and play back these images for easy follow-up to observe the effects of treatment. Because the colposcope lens does not touch the patient’s vagina, the examination does not cause cross infection between patients. It is painless for the patient during the examination. Therefore, colposcopy has been widely used in the examination of vaginal and cervical diseases, and is known as the “golden eye” of gynecologists, and is therefore very popular among patients and doctors. In recent years, new endoscopic techniques have emerged, such as micro-laparoscopy, transvaginal water injection laparoscopy, pneumoperitoneum laparoscopy, robotic laparoscopy, and advances in electronic camera imaging technology, information transfer technology and broadband network technology have made it possible to conduct remote academic exchanges, remote surgical consultations, and even remote surgery via the Internet. Therefore, endoscopic technology has a broad prospect in the field of gynecology, and we believe that gynecological endoscopic technology will be able to bring more benefits to patients.