Bleeding for 15 days after the operation should not be a sign of menstruation. The process of the procedure will scrape the entire uterine cavity of the endometrial tissue, for the endometrium has a certain degree of damage to the endometrium, the endometrium of the endometrium needs a period of time to recover, usually the fastest will take about 25-30 days. Moreover, the surgery will also affect the normal endocrine function of the ovaries, and it will take some time for the ovaries to recover after the surgery. Theoretically, it takes at least a month for menstruation to occur after the procedure. Bleeding 15 days after the removal surgery, this situation is considered to be due to the incomplete removal surgery, the uterine cavity of the embryonic tissue residue caused by abnormal bleeding, the patient needs to do ultrasound examination to further clarify the diagnosis and then treatment.