The Department of Obstetrics and Gynecology of Beijing Tiantan Hospital, affiliated to the Capital Medical University, has successfully treated a woman with dysfunctional uterine hemorrhage by applying the new NovaSure impedance control technology. According to the report, this is the first beneficiary of the application of this technology to perform surgery in China. This female patient, aged 48 years old. She was suffering from endometrial glandular dilatation and polyp changes, which led to increased menstrual flow and bleeding during her “period”. Especially in recent years, the condition has worsened significantly, with each menstrual bleeding exceeding about 10 times that of a normal woman, causing long-term physical exhaustion and seriously affecting normal life. On May 31 this year, the Department of Obstetrics and Gynecology of Tiantan Hospital opened a green channel for emergency care and admitted her to the hospital with “dysfunctional uterine bleeding”. Due to the patient’s obesity, history of hypertension, cerebral thrombosis and severe anemia (hematocrit only 52g/L), she was a contraindication to medical hormone therapy, and a total hysterectomy would have been a higher surgical risk. In order to relieve the patient’s pain, the specialists carefully analyzed the condition and elaborated a treatment plan based on anti-inflammatory treatment and the input of 3 units of isotype red blood cells to correct the anemia, but the patient still continued to bleed. Then it was decided to perform hysteroscopy under intravenous general anesthesia plus NovaSure impedance control technology for endometrial debridement, which is an advanced technology introduced into the hospital for the treatment of abnormal functional uterine bleeding, and does not require endometrial pre-treatment like traditional hysteroscopic electrosurgery or thermal ballooning before surgery, and is not restricted by menstruation and bleeding. The procedure is performed by vaporizing the endometrial tissue using the principle of bipolar radiofrequency energy, thus completing the surgical treatment with better effectiveness and safety than the gold standard method of “endoelectrolysis”. The operation was performed on June 3 by Professor Feng Limin, director of the Department of Obstetrics and Gynecology of the hospital. The operation was performed routinely by detecting the depth of the uterus and the width of both uterine horns, setting the data, activating the operation key, and peeling the endometrium. On August 6, the patient was discharged safely the next day after a follow-up visit of more than 60 days after the operation, which confirmed that the patient had no abnormal bleeding, no complaints of discomfort, no abdominal pain, no fever and other uncomfortable symptoms.