There are many reasons for vaginal discharge, mainly including vaginitis, vaginal laxity and rectal fistula. 1. Vaginitis: Bacterial vaginitis, in particular, can easily lead to a large amount of gas in the vagina, and once subjected to the phenomenon of venting will easily occur. 2. Vaginal laxity: If the vagina is too loose, it will also cause vaginal discharge, which is common in elderly women or menopausal women. 3. Rectal fistula: the patient’s intestinal gas, can invade the vagina, and then cause vaginal exhaust, this situation is usually accompanied by an unpleasant odor of feces. It may also be seen in childbirth, such as post-partum weakness, birth canal injury. It is recommended that women with discomfort can go to a regular hospital to receive a checkup, need to find the specific cause of the disease can be under the guidance of a specialist doctor according to the cause of the treatment, to avoid the impact of the health of the body.