If you notice gas coming from your vagina during sex, you’re likely experiencing what’s commonly called vaginal flatulence (or “queefing”).

This is something every woman can experience because the vagina is a spacious cavity—not a tight tube. Some women have a small vaginal opening but a larger internal space. During sex, as the vagina expands and contracts with thrusting motions, air can easily enter inside. When this air needs to escape, it causes the sound of vaginal gas. Usually, this air doesn’t have any particular odor.

If you want to reduce queefing, practicing Kegel exercises can help strengthen your pelvic floor muscles. Also, women who have given birth may have decreased vaginal elasticity due to overstretching, which increases the internal space and the chance of air entering—thus more frequent vaginal gas. Pelvic floor rehabilitation can improve this.

If these are the reasons, there’s no need to worry. However, some medical conditions like vaginitis or rectovaginal fistula can also cause vaginal gas. If you notice any other unusual symptoms, please consult a doctor promptly.