The causes of white foam during intercourse are as follows: 1, gynecological inflammation, such as vaginitis, due to bacterial or trichomonas vaginitis, need to immediately go to the hospital for diagnosis and treatment; 2, may also be due to the normal performance of women, women may be very excited during intercourse, the body will secrete lubricating fluid, some people’s lubricating fluid is foamy; 3, other causes may be considered due to pelvic inflammatory disease The woman’s body may be excited during intercourse, some of them are foamy. The body has gynecological inflammation, need to go to the hospital for investigation, identify the cause and then reasonable treatment, usually should maintain a clean and hygienic sex life.