If abdominal pain is unbearable after a medical abortion, it may be caused by the following reasons: 1. There are still residual tissues in the uterus, and the residual tissues can stimulate the contraction of the uterus and cause pain in the lower abdomen, and the pain is more severe and often accompanied by irregular vaginal bleeding. It is recommended to go to the hospital in time for examination, and if it is intrauterine residue, it is recommended to do clearance surgery as soon as possible to slow down the abdominal pain. 2, because of the genital infection after the drug abortion, such as the emergence of pelvic inflammatory disease, acute inflammation will lead to severe pain in the lower abdomen, and accompanied by increased vaginal discharge, often purulent. It is recommended to go to the hospital for examination, and if the abdominal pain is caused by inflammation, give anti-inflammatory treatment as soon as possible.