If there is pain in the lower abdomen after intercourse, there are several reasons for this: 1. The action of intercourse is too rough and can easily cause strain on the peritoneum of the pelvic organs, causing abdominal pain, but this abdominal pain symptom will be relieved soon after rest. 2. Chronic pelvic inflammatory disease can also easily cause pain in the lower abdomen after intercourse. This condition is often accompanied by lower abdominal swelling, increased leucorrhea, in addition to painful symptoms before intercourse. 3, if there is pelvic endometriosis is also prone to abdominal pain after intercourse. So if you have abdominal pain after intercourse, it is recommended that you should go to the hospital for a checkup to see the specific cause, and then you can take the next step to treat the symptoms.