One month after miscarriage, stomach pain may be caused by the following reasons: First, if the abortion is done, there may be adhesions in the cervix, resulting in menstrual blood not being discharged when menstruation comes, which will cause stomach pain. It is recommended to go to the hospital for an ultrasound examination as soon as possible. Through ultrasound examination, it is often seen that there is fluid in the uterine cavity, and after cervical dilatation, the bleeding will be discharged, which will obviously relieve the stomach pain, and it is also recommended to take oral antibiotics for about 3 days to prevent the cervical adhesions from appearing again. Second, it may be caused by inflammation of the pelvis, which can be clearly diagnosed through gynecological examination. If it is inflammation, anti-inflammatory treatment is actively given. This is the clinical cause and treatment of stomach pain one month after miscarriage.