Hysteroscopy refers to a series of tests and treatments such as examination, diagnosis and analysis of women through hysteroscopy, which can be used as both an examination method and a surgical procedure, and is currently a new, minimally invasive gynecological diagnostic and therapeutic technology, and its operation method is also relatively simple. The general steps of hysteroscopy are as follows: First, the patient takes the truncated position, routinely disinfects the vulva and vagina, clamps the anterior lip of the cervix with a cervical clamp, probes the depth and direction of the uterine cavity with a probe, and expands to No. 6.5-7 according to the sheath’s outer diameter. Second, with 5% dextrose solution or saline or mannitol rinse the vagina, cervix, as well as the vagina, the first to empty the air between the sheath and the optic tube, slowly placed in the hysteroscope, turn on the light source, to be a bright field of vision, you can rotate the mirror and follow the sequence of the full observation. Thirdly, if abnormal tissue or hyperplasia is found in the uterine cavity, it is necessary to use biopsy forceps to clip part of the tissue for biopsy. Fourth, if endometrial curettage is needed under hysteroscopy, the endometrial tissue in the uterus and cervical segments will be scraped sequentially with a curette under the cooperation of hysteroscopy. Hysteroscopic surgery is now widely used in the diagnosis and treatment of gynecological diseases. Its operation method is relatively simple and safe, and it is relatively convenient and safe to take biopsies and perform scraping under hysteroscopy.