The uterus is the most important characteristic organ of women, and along with the life of both sexes, it leaves various marks in her small space, one of which is the foreign body in the uterine cavity. As a simple and effective form of contraception, the IUD is widely used in our country. While contraception brings many troubles, such as embedded, ectopic, and difficult to remove, hysteroscopy plays a great advantage in understanding the situation of the IUD in the uterus under direct vision, evaluating the difficulty of operation, and removing the IUD in the uterine cavity. Here we need to remind our patients that the IUD must be removed within one year after menopause to avoid difficulties in removal due to genital atrophy, and our doctors should not operate blindly when they encounter difficulties in pulling, causing fracture residue and causing more difficulties in the next step of removal, which can be taken after a clear diagnosis by hysteroscopy. In addition the placement of the IUD should also attract enough attention from the doctor, do not take every simple operation lightly, often see the IUD directly into the abdominal cavity or between the muscle wall, causing great pain to the patient. Sutures are another kind of uterine foreign body. In patients with abnormal bleeding, residual sutures can often be seen for many years as if they were an adsorbent, causing the collection of mucus and menstrual blood, as well as inflammatory exudation of the tissue around the sutures, and this non-absorbable suture is also difficult to remove hysteroscopically, so our surgeons should choose absorbable sutures to do penetration of the uterine cavity as much as possible to avoid causing It is actually very simple to not ignore every little detail during the surgery. The most common complication of abortion is incomplete aspiration, which can be caused by a variety of reasons, including abnormal implantation of embryos, such as horn implantation, adhesions, abnormal development of the uterus, such as longitudinal uterus, abortion in large months, and immaturity of the surgeon’s technique, etc. Hysteroscopic mechanical or electrical removal of residual embryos under direct vision avoids endometrial damage caused by blind scraping. However, hysteroscopic removal of embryos is not used as a routine means of abortion because the cloudy vision caused by bleeding during the procedure is more likely to result in incomplete abortion. Negative pressure suction remains the easiest and most convenient way to terminate early pregnancy, and hysteroscopy can play its unique advantage in the removal of old residual embryos. Technology is for people, and may each new technology bring better treatment to our patients.