If the residual tissue is 2cm in size, the chances of discharging it through menstruation may be relatively small, because the residual tissue of 2cm in size is relatively large and cannot be discharged through menstruation. If the residual tissue is less than 1cm in size, it may be possible to soften the residual tissue by taking oral medicines to activate blood circulation and remove blood stasis, such as mifepristone, and then carry out the removal of residual tissue through hysteroscopic surgery. If the residual tissue is not particularly long, not more than 10 days time, without oral softening residual tissue drugs, you can directly carry out ultrasound monitoring of the removal of the uterus, to help residual tissue discharge. For longer than 1 month it can be implanted into the uterine cavity and requires hospitalization for electrosurgery before the uterine cavity can be restored to its shape.