The time of abortion is counted from the moment when the products of pregnancy are discharged from the vagina. If the abortion is not clean, and at the same time the operation of purging the uterus is done, from the first day of the operation of purging the uterus is the time of repairing the uterine lining, and the next menstrual period is counted from the day of the purging of the uterus, and it will be resumed in about 1 month, which is the way of calculating the abortion. After the abortion, you should pay attention to the following matters: 1, observe the amount of vaginal bleeding. 2, keep the vulva locally clean. 3, pay attention to observe whether there will be pain in the lower abdomen. 4, pay attention to whether there are other rotten flesh-like tissues discharged from the vagina in addition to the bleeding, if there is any abnormality, go to the hospital for treatment in a timely manner.