Incomplete longitudinal uterus is a type of uterine malformation, which is a congenital developmental problem. The mediastinum divides the uterine cavity. The mediastinum is classified according to the length of the mediastinum into a completely mediastinum and an incomplete mediastinum, which is shorter and does not reach the cervix. The incomplete mediastinum is shorter and does not reach the cervix. The mediastinum has an effect on pregnancy and even if pregnancy occurs, there is a risk of spontaneous abortion or preterm delivery, ectopic pregnancy, abnormal fetal position, etc. To confirm the presence of an incomplete longitudinal uterus, a hysterosalpingogram or hysteroscopy can be performed. To determine a longitudinal uterus, you can choose hysteroscopic surgery to remove the longitudinal diaphragm by electrodesis, which is less traumatic to the uterus, and you can usually prepare for pregnancy 3 months after the surgery. After the surgery, you can take short-acting contraceptive pills under the guidance of the doctor for regulation to prevent the occurrence of uterine adhesions. After surgery, pay attention to the hygiene of the vulva and do not have sexual intercourse for one month.