Vaginal gas, or vaginal flatus, describes passing gas through the vagina. Possible causes include sexual activity, hygiene products, tense muscles, and certain health conditions.

Vaginal gas is a common condition and is not usually associated with any health risks. However, in rare cases, it can signal more serious conditions that require medical treatment, such as vaginal fistulas, which are due to an atypical connection between two organs.

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Vaginal gas, also known as vaginal flatus or vaginal wind, refers to passing gas through the vagina. Some people may also call this queefing.

There is usually some air in the vagina, but vaginal gas may occur when larger pockets or bubbles become stuck and slowly squeak out or when the air is released suddenly.

Vaginal gas usually causes a noticeable sound as the trapped air vibrates through the vaginal canal. This may sound similar to anal flatulence. Although many cases of vaginal gas are natural and not a health risk, many people may experience embarrassment and a negative effect on quality of life.

Anytime something is inserted into the vagina, air can enter and become trapped inside. In most cases, vaginal gas is not considered a health risk. A 2019 review notes that common causes of vaginal gas can include childbirth and vaginal laxity (looseness).

Some common natural causes of vaginal gas include:

Pelvic floor dysfunctions or conditions

There is very little research on vaginal gas, probably because it is not harmful and may only cause occasional embarrassment. However, there is a link in some way between pelvic floor conditions and an increased risk of vaginal gas.

These conditions refer to when a person experiences an injury or weakness to the pelvic muscles and connective tissue. Research notes that vaginal flatus is more prevalent in those with pelvic floor disorders. Common conditions and factors linked to vaginal gas include:

  • urinary incontinence
  • pelvic organ prolapse
  • fecal incontinence
  • weak pelvic floor muscles caused by childbirth, being overweight, age, or excessive bowel strain

Sexual activity

During sexual activity, air can easily become trapped inside the vagina. The vagina expands and contracts during arousal, allowing more air to enter. Additionally, vaginal wetness, which increases during sex, can also contribute to a louder sound.

Each time a penis or another object enters the vagina, there is a risk of this excess air becoming trapped. When this air is released, it may cause the sensation and noise of passing gas.

Menstrual products

Products inserted into the vagina, such as tampons and menstrual cups, can also allow air bubbles to become trapped inside the body.

This air can escape when removing the product, or during physical activity or stretching.

Tense muscles

Certain activities, such as sexual activity or gynecological exams, may cause the pelvic muscles to tense. This can trap pockets or bubbles of air in the vagina.

Coughing and exercise can also cause the pelvic muscles to tense, pushing air downward and out of the vagina.

Stretching exercises

Certain exercises that involve stretching the pelvic region, such as yoga, often encourage the vagina to open or relax, allowing more air to enter.

During a change in pose or position, the vagina can suddenly release these pockets of trapped air.

Gynecological exams or procedures

Physical examination and the insertion of a speculum during gynecological exams and other procedures can cause air to become trapped in the vagina.

This air may be released when a healthcare professional removes the speculum and completes the physical examination.

In many cases, there is no real way to prevent vaginal gas, but there is also no need to. Usually, the only symptoms of vaginal gas are the noise and sensation of trapped air leaving the vagina, which is typically painless.

If vaginal gas does not go away naturally, squatting down, especially while urinating, can help trapped air escape. If vaginal gas is the result of tension, trying to relax and practicing deep breathing may help.

If vaginal gas is problematic, a person can avoid the sexual activities and physical exercises that cause it. Avoiding internal menstrual products, such as tampons, may also help reduce the risk.

Kegel exercises are a type of pelvic floor exercise known to improve the strength of these muscles. By strengthening the pelvic floor muscles, a person may also reduce the likelihood of vaginal gas.

Fistulas occur when an abnormal, hollow chamber develops between two otherwise typically unconnected organs. They can occur when scar tissue forms or breaks down. Vaginal fistulas can cause vaginal gas.

Fistulas can develop between the vagina and several other pelvic organs. The symptoms associated with vaginal fistulas are dependent on the size and location of the fistula and the organs involved.

The most common types of vaginal fistula include:

  • Vesicovaginal fistula: This describes a tract that connects the vagina and the bladder.
  • Rectovaginal fistula: This refers to a tract that connects the vagina and the rectum.
  • Colovaginal fistula: This type describes a tract that connects the vagina and the colon.
  • Enterovaginal fistula: This involves a tract that connects the vagina and the small intestine.

In rare cases, vaginal gas can be a sign of a more serious condition that requires medical attention. A fistula between the vagina and another abdominopelvic organ is a condition associated with vaginal gas requiring medical attention.

A person should contact a doctor if vaginal gas follows or is accompanied by:

  • childbirth, especially after a recent or complicated delivery
  • radiation therapy involving the pelvis
  • gynecological, pelvic, or abdominal surgeries
  • pain or discomfort
  • urine leakage or increased discharge
  • feces or other waste
  • a foul-smelling odor
  • blood
  • inflammation or swelling of vaginal tissues
  • a lesser desire to exercise, socialize, or have sex

A person may also wish to consult a doctor if vaginal gas develops throughout the day and is unrelated to activities known to cause the condition, such as sexual activity or stretching.

Vaginal gas, or vaginal flatus, refers to passing gas through the vagina. Vaginal gas is common and does not typically relate to a health condition. Common causes can include childbirth and inserting objects into the vagina, such as during sexual activity or using menstrual products.

A possible health condition that can cause vaginal gas is a fistula. If a person experiences symptoms such as pain, incontinence, vaginal swelling, or a foul-smelling odor, it is advisable to contact a doctor.