Blowjob is a condition in which excessive gas is produced in the vagina and spontaneously discharged from the body, which cannot be controlled by oneself and produces a symptom similar to farting. The main reasons that lead to the phenomenon of blowing include: 1, suffering from trichomoniasis, mycosis vaginalis, bacterial vaginitis, cervicitis, endometritis and other gynecological inflammatory diseases, there is too much inflammatory secretion inside the vagina, which leads to excessive gas production under the action of pathogenic microorganisms. 2, because of the excessive frequency of sex, or multiple deliveries, repeated abortions, etc., resulting in vaginal wall relaxation, decreased elasticity and cause blowing. 3, because of the excessive frequency of sex, or multiple births, multiple abortions, etc., resulting in vaginal wall relaxation, decreased elasticity. relaxation and decreased elasticity and cause vaginal blowout. For this situation, if there are obvious symptoms of abnormal leukorrhea, itching and odor, routine leukorrhea tests should be carried out, and the primary disease should be actively treated after a clear diagnosis. Normally, we should pay attention to the daily adherence to do anal retraction exercises to improve the elasticity of the vaginal wall.