If the first menstrual period after abortion is painful, it is important to understand whether it is due to the following reasons: a. If the body’s resistance decreases after abortion and does not strengthen nutrition leading to pathogenic bacterial infection and pelvic inflammatory disease, it will lead to a state of pelvic congestion, and when menstruation occurs, it will aggravate the state of congestion, so the symptoms of dysmenorrhea will appear, after gynecological examination can be initially diagnosed, and actively give anti-inflammatory After gynecological examination, the initial diagnosis can be made and anti-inflammatory treatment can be actively given to relieve the symptoms of menstrual pain. Second, because of the damage to the cervical mucosa caused during abortion, the inflammation causes adhesions in the cervical mucosa, so that the menstrual blood cannot be discharged more smoothly and leads to uncoordinated contraction of the uterus, so there will be pain in the lower abdomen, after clinical examination and active dilation treatment, the symptoms of dysmenorrhea will be relieved.