Day 3 of medical abortion is usually within 6 hours after taking the medication, the vast majority of patients will expel the pregnancy sac. However, some people are not sensitive to the medication and may not expel the gestational sac within 6 hours, in which case the medication needs to be reinforced again. If there is still no discharge after taking the medication, the bleeding is not heavy and there is no abdominal pain, then the medication can be taken again on the second day. If the vaginal bleeding increases and the amount is more than twice the usual amount of menstruation, it is necessary to have a timely evacuation of the uterus. Some patients are very sensitive to the medication and may expel the pregnancy tissue within one hour after taking the medication, some within three hours after taking the medication, and the vast majority within six hours. However, some people are too slow to respond to the medication, resulting in failure of the abortion and the need for evacuation.