The abdominal cramps after intercourse may be caused by over-stimulation of the cervix, ovulation, rupture of the luteal cysts, pelvic inflammatory disease, etc., as follows: 1, over-stimulation of the cervix: over-stimulation of the cervix during intercourse, resulting in uterine excitement, causing vaginal contraction, the symptoms of abdominal cramps after intercourse, can be relieved after rest, generally no treatment; 2, intercourse in the ovulation period: ovulation when the follicle rupture, follicular fluid stimulation of the pelvic cavity The symptoms of abdominal cramping can be relieved by hot compresses and massage, and can be gradually recovered in a few days; 3, ruptured luteal cysts: luteal phase intercourse causes abdominal cramping, it is recommended to go to the hospital for ultrasound examination to exclude the occurrence of ruptured luteal cysts, because the rupture of luteal cysts may have a large amount of pelvic bleeding, causing abdominal cramping, requiring oral medication or hospitalization for conservative treatment, surgery, etc. The main symptom is pain in the lower abdomen, which is aggravated after sexual intercourse and activity, and can be accompanied by lumbago and fever. It is mainly treated by antibiotic drugs, such as penicillin, etc. At the same time, pay attention to rest and drink more water; 5. Others: such as endometriosis, pelvic connective tissue infection, tubal effusion, hydrosalpinx, pelvic effusion, etc., all have varying degrees of abdominal cramping, which can intensify after intercourse. Pay attention to hygiene before and after intercourse and avoid rough movements. If the symptoms of abdominal cramping persist or worsen, it is recommended to seek medical attention promptly.