There is no certain comparison between the pain of medical abortion or menstrual cramps. Because of the painful menstrual cramps, some people have very mild menstrual cramps and just feel a vague pain in their lower abdomen, while others have very pronounced menstrual cramps, so painful that they turn pale, have a cold sweat on their head, and even experience fainting sensations. Of course, the pain of a medical abortion is not as great as this, and there is no pain when taking mifepristone for a medical abortion. Mifepristone works mainly to kill the embryo, and it is only when taking misoprostol tablets that there is significant pain. The pain of taking Misoprostol tablets is mainly from the pain of contractions, when the uterus contracts in order to expel the embryonic tissue from the uterus, so the pain is related to the pain of contractions.