Vaginal blowouts are also known as vaginal emissions. If a woman has not given birth to a child and occasionally experiences vaginal blowing during intercourse, it is generally a normal manifestation. The main reason for this is that during intercourse, gas enters the vagina due to the position of the coitus, so the gas will be discharged during friction and cause the phenomenon of vaginal blowing, which often does not require any treatment. If a woman has frequent vaginal blowouts after giving birth, even without coitus there will be vaginal gas phenomenon, it is an abnormal performance, mostly considered to be caused by the relaxation of the vaginal wall muscles, then you need to consider doing the pelvic floor muscle rehabilitation therapy and anal contraction exercises.