It is more appropriate to review the abortion about two weeks after the abortion. Because abortion surgery is traumatic to the uterus, it takes at least one month or even longer for the uterus to recover after abortion. Generally, vaginal bleeding lasts for about a week or so after the abortion, up to a maximum of ten days. If the uterus does not contract well after the operation, the vaginal bleeding will last longer. Therefore, it is recommended to have a follow-up ultrasound examination about two weeks after the abortion to find out the recovery of the uterus, including whether there is any residue in the uterine cavity, the growth of the uterine lining and its thickness, and whether there is any abnormality in the pelvis and the double adnexa, and so on. If there is any residue in the ultrasound, medication or removal of the uterus can be chosen according to the size of the residue. If the time after the abortion is too long, such as one month after the abortion and then go to the review, in case there are abnormalities in the review, such as unsuccessful surgery, there are residues in the uterine cavity but can not be dealt with in a timely manner, which is not only prone to infections, but also affects the therapeutic effect, it is recommended to return to the hospital two weeks after the abortion to do the ultrasound review on time.