Cesarean section incision press down hard lump whether the uterus needs to be divided into circumstances, if it is just after delivery within a month, it may be the uterus, because the uterus at this time has not yet recovered to the normal size, with the prolongation of time, the lumps can gradually subside, don’t worry too much, according to the doctor’s request to go to the obstetrics department regularly to review ultrasound and so on, to observe the uterus recovery situation. If you have been postpartum for a long time, you can still touch the hard lumps, commonly due to the following reasons: First, scar hyperplasia, caused by excessive growth of the wound, with the prolongation of time, the hard lumps can gradually subside. Secondly, there is local rejection, which is common in the rejection reaction of suture, if there is no obvious pain, there is no need to worry too much, if it is absorbable thread, wait for the suture to be absorbed can be, if it is non-absorbable thread, the granulation tissue will be wrapped up, and there is no harm to the body, but if the lump is obviously painful, you need to go to the hospital in time for examination and treatment.