First of all, pay attention to vaginal infection. Some women suffering from vaginitis will also have the phenomenon of vaginal exhaust. However, in these patients, the airflow discharged from vagina is mostly weak, and more importantly, there are increased leucorrhea, pruritus vulvae or vaginal discomfort. This is because microorganisms infected with vagina will produce gas and exist in vagina during reproduction. When posture changes or abdominal pressure increases, these gases will be discharged from the vagina. Most pathogenic microorganisms are anaerobic bacteria or trichomonas vaginalis. In this case, I suggest you go to the hospital to see a gynecologist and treat under the guidance of a doctor.