After intercourse, abdominal distension may be caused by pelvic congestion, too violent intercourse, bad emotional stimulation, excessive vaginal friction, pelvic inflammatory disease, bacterial cystitis and other factors, as follows: 1. pelvic congestion: after intercourse, the pelvic cavity is in a state of congestion, resulting in distension and pain in the lower abdomen, which can be relieved after rest and generally does not require treatment; 2. intercourse is too violent: intercourse is long and frequent, especially in women Inadequate preparation, excessive male force can lead to excessive spasm of the female pelvic muscles, causing abdominal distension and pain. Usually can be relieved after rest, such as continued discomfort, it is recommended to seek medical attention; 3, bad emotional stimulation: contraction of the perineal muscles during intercourse, soreness and pain, coupled with excessive tension or psychological barriers, vaginal spasm, reflecting to the abdomen to produce distension and pain. Young women with insufficient sexual experience and immature bodies, whose bodies fail to adapt, have a higher chance of occurrence, and need to give psychological guidance and relaxation; 4, excessive vaginal friction: excessive friction on the uterus and vaginal wall during intercourse, or even impact, may also cause abdominal distension and pain, which can generally be gradually relieved after rest, and if the symptoms persist, it is recommended to seek medical attention; 5, pelvic inflammatory disease: pelvic inflammatory disease will appear with persistent lower abdominal Pain, fever and other symptoms, often intensified after exertion, sexual intercourse and before and after menstruation. It is recommended to choose antibiotics for treatment under the doctor’s treatment, such as ceftriaxone, etc. Pay attention to rest during medication and strengthen abdominal warmth; 6, bacterial cystitis: do not pay attention to hygiene during intercourse, bacterial infection upstream triggered by cystitis, can appear lower abdominal distension and pain, accompanied by frequent urination, urinary urgency, painful urination and other symptoms, oral antibiotics for treatment, such as norfloxacin, etc., and pay attention to drink more water; 7, other: such as uterine endometriosis, chronic pelvic inflammatory disease and uterine fibroids, etc., will have different degrees of abdominal distension and pain, and the symptoms are easily aggravated after intercourse. Endometriosis and uterine fibroids can use non-steroidal anti-inflammatory drugs as prescribed by the doctor. Patients with chronic pelvic inflammatory disease can be treated with antibiotics as prescribed by the doctor. Note: Pay attention to washing the vulva after intercourse and drink more water to prevent infection. It is advisable to seek medical attention to identify the cause and treat the cause of the persistent abdominal pain.