The second day of intercourse, the abdominal swelling may be caused by pelvic congestion, pelvic inflammatory disease, adnexitis or endometriosis. This is the first time to go to the hospital to do abdominal ultrasound, clear diagnosis after symptomatic treatment. 1, pelvic congestion: pelvic organs in the state of congestion and bruising during intercourse, some women after intercourse will appear lower abdominal swelling, this situation can be observed first, pay attention to rest, avoid excessive frequent sex, often do “Kegel exercise” to exercise the pelvic floor muscle, to help reduce intercourse pelvic congestion. The actual fact is that you can find a lot of people who are not able to get a good deal on a lot of things. The treatment for pelvic inflammatory disease and adnexitis is mainly a sufficient course of anti-infection, as well as to enhance immunity and prevent recurrent attacks; 3, endometriosis: also appear the second day of intercourse abdominal swelling, it is necessary to combine the patient’s age fertility needs and the presence of chocolate cysts and size, etc. comprehensive assessment, choose targeted treatment.