You can’t eat before doing a painless abortion, you need to fast for 4-6 hours before doing a painless abortion, painless abortion requires anesthesia, if you eat and then go to do a painless abortion, vomiting during the operation is easy to cause choking. Before doing painless abortion need to do B ultrasound to determine the existence of ectopic pregnancy, if found that the fetal sac is too small or the size of the gestational sac just meets the 5 weeks or so, it is not possible to do abortion, do painless abortion before the physical examination to determine whether there is disease, there are diseases can not be done in the case of abortion. Normal is within 6-10 weeks of menopause can choose to do painless abortion, a few days after the operation should pay attention to rest, avoid exertion, 6 weeks can not have sex, in order to prevent infection.