There are various reasons for the feeling of lower abdominal cramps after intercourse, such as: firstly, the cramps after sex are due to the stimulation of the surrounding organs during sex will cause contraction or spasm, such as the bladder, urethra, intestines and so on will cause a feeling of abdominal cramps, and the cramps will slowly disappear after intercourse. Secondly, the sexual partner is too rough during sex and causes abdominal distension and pain, so it is necessary for the sexual partner not to be too rough during sex. Finally, inflammatory diseases caused by gynecology, such as vaginitis, cervicitis, adnexitis, endometritis, uterine fibroids, etc. can cause abdominal pain and bloating, and need to go to the hospital in a timely manner under the guidance of the doctor for symptomatic treatment. During the treatment period, sexual intercourse should be prohibited and personal hygiene should be paid attention to. It is recommended to pay attention to keep warm after intercourse to avoid getting cold or blowing cold wind can also cause abdominal distension and pain.