Hysteroscopy is used to find out whether the internal environment of the uterus is normal, whether there are adhesions, polyps, etc., whether the endometrial blood supply is poor, and to find the cause of abnormal uterine bleeding. Hysteroscopy can be considered in the following cases: 1) abnormal uterine bleeding; 2) uterine adhesions caused by surgery or infection; 3) repeated miscarriages (more than twice); 4) abnormal uterine echogenicity and occupying lesions found by ultrasonography; 5) further diagnosis and treatment of abnormal hysterosalpingography; 6) unexplained infertility; 7) repeated failure of fertility treatment; 8) localization or removal of intrauterine devices and intrauterine foreign bodies; cannot be done Several cases of hysteroscopy: 1. pregnancy 2. vaginal or urinary tract infection 3. endometrial cancer The procedure of hysteroscopy Hysteroscopy is usually performed 3-7 days after menstruation and can be preceded by general anesthesia or local anesthetic to block pain. A vaginal speculum is placed and the hysteroscope is inserted through the cervix and gently moved into the uterus. After filling the uterine cavity with saline, the inner wall of the uterus and the opening of the fallopian tubes can be clearly seen through the hysteroscope. Biopsies or other treatments can also be performed with small medical devices under hysteroscopic guidance, if needed. Recovery after hysteroscopy If general anesthesia is used, the patient will need to stay in the hospital for a period of observation until the anesthesia wears off completely and he or she can be discharged. It is normal to experience mild cramping or a small amount of bloody discharge for about a week after surgery. However, if there is fever, cold or abnormal increase in bleeding, please seek immediate medical attention.