The best time frame for a painless abortion is around 7 weeks of pregnancy, during the period of 40-70 days after conception. Before having a painless abortion, a series of pre-operative tests will be done. First, an ultrasound will be done to determine if the pregnancy is intrauterine. Blood will be drawn for routine blood tests, blood type, coagulation tests, four hospital tests, and an electrocardiogram will be checked. If there is no abnormality in the examination, painless abortion can be performed. After the abortion, pay attention to the vaginal bleeding, maintain the hygiene of the perineum, and do not have sex for one month. After miscarriage, if you find that there is a lot of bleeding or the bleeding lasts for a long time, you need to go to the hospital for ultrasound review in time as abortion may cause residue. After miscarriage, take medicine to promote the recovery of the uterus as prescribed by the doctor.