Painless abortion and medication abortion are very harmful, just according to their own situation to choose the right way to terminate pregnancy, in order to better reduce the harm to the uterus.1, medication abortion: suitable for pregnancy within 49 days, and the gestational sac as far as possible does not exceed 2cm above, then you can increase the chances of success of medication abortion. At the end of the drug abortion, if it can be successful can be exempted from the operation of the uterine cavity, to avoid the existence of uterine cavity adhesion occurs.2, artificial abortion surgery: suitable for more than 50 days of pregnancy, and the size of the gestational sac has been in the more than 2cm, the use of negative pressure suction device way will be suctioned out of embryonic tissues. To avoid the embryo remaining in the uterine cavity due to blindly performing medication abortion, causing uterine infection, irregular menstruation, and even pelvic inflammatory disease manifestation occurs. Therefore, the best way to terminate pregnancy is the one that suits you.