Abortion after 20 days of pregnancy usually requires more than 2 weeks of rest, i.e., at least 14 days of menstruation. At 20 days of pregnancy, i.e. 20 days after the formation of fertilized egg, which is equivalent to 36-37 days after menopause, the diameter of the gestational sac is usually less than 1cm, and at this time, the patient is not allowed to choose abortion. If the pregnancy sac can be seen in the uterine cavity under ultrasound, the patient can choose medication abortion. If the gestational sac cannot be seen in the uterine cavity, abortion is not an option. Abortion after 20 days of pregnancy, patients need to sit for more than 14 days. During the rest period, oral medication to promote uterine contraction and antibiotics are needed, and regular ultrasound review is also needed to clarify whether there is any residue in the uterine cavity. In addition, women should not do strong physical labor during the rest period after abortion, avoid over-tired body and cold. Eat less cold food, eat more nutritious and easy to absorb food; at the same time to prohibit sexual intercourse, keep the pubic area clean and hygienic, in order to avoid causing infection.