Incomplete mediastinum does not necessarily require surgery, but if there is a history of recurrent miscarriages, and incomplete mediastinum is found on a repeat ultrasound because of a search for the cause of the miscarriages, and there is no other cause of the miscarriages that can be identified, incomplete mediastinum electrosurgery may be considered. Incomplete mediastinotomy is theoretically beneficial to the embryo’s implantation and growth. However, it should be considered that there may be adhesions in the uterine cavity after mediastinotomy, which should be considered in conjunction with hysteroscopy, and the choice of surgical procedure should be made under the guidance of the doctor. Women who have had a normal fetus in the past and have a specific cause for this miscarriage may also be considered for treatment without surgery. Incomplete mediastinum uterus does not necessarily have a major impact on life, cause menstrual changes, or necessarily affect fertility.