Air in the vagina can be caused by vaginal inflammation, intestinal flatulence, and vaginal wall laxity. 1. Laxity of the vaginal wall: This is usually seen in women who have given birth or who have been induced at an older age. 3. Inflammation of the vagina: Due to the presence of various bacteria in the vagina, gas can be produced, which can increase the production of gas in the vagina, resulting in air in the vagina. 4. Intestinal flatulence: In some cases, intestinal flatulence can also cause air in the vagina, but it is less common. Therefore, in case of air in the vagina, patients can do routine leucorrhea and intestinal examination to clarify the cause and carry out medication, surgical treatment and pelvic floor rehabilitation, etc. They also need to improve with anal lifting exercises.