The detailed procedure of ordinary abortion surgery is as follows: the patient first needs to drain the bladder, take the bladder lithotomy position, lying on the operating table, the nurse will establish intravenous access for the patient, and at the same time infuse fluids, mainly for resuscitation in the process of surgery when there is a special situation. At the same time, the nurse will prepare the surgical instruments for the doctor, who will disinfect his hands and then wear a sterile gown and gloves. After the preparation, the doctor will disinfect the patient’s vulva and vagina, lay a sterile towel after disinfection, and then do a bimanual diagnosis to find out the anterior and posterior position of the patient’s uterus as well as the size of the uterus. At this time, a speculum is used to open the vagina, the patient’s cervix is observed and sterilized, then the cervix is clamped with cervical forceps, the depth of the uterus and its anterior-posterior position are probed with a probe, and the cervix is dilated with a dilator. After the cervix has been prepared, a suitable suction tube is used to enter the patient’s uterine cavity, and the pregnancy sac and meconium are suctioned out before the operation is completed.