It is normal to experience nausea after an abortion. The pregnancy hormones in the body do not drop to normal immediately after an abortion, but gradually subside and return to normal. During this time the pregnancy hormones can still irritate the gastrointestinal tract and nausea can occur, but it will gradually subside. If the nausea does not subside gradually, we can’t rule out the possibility that the abortion failed and the gestational sac in the uterine cavity continues to survive, so we need to go to the hospital to do a pelvic ultrasound review. If the uterine cavity is clean, considering the body of the pregnancy hormone is in the process of withdrawal, if the uterine cavity and the gestational sac indicates that the abortion has failed, but also need to re-open the surgical treatment, regular blood tests HCG, as long as the HCG is declining state can be restored to normal.