Feeling Gas During Urination: What Could Be the Cause? - Urology

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Feeling of gas expulsion during urination?


Hello doctor, I experience a sensation of gas being expelled while urinating, which does not come from the rectum.
It feels like it is being released along with the urine, and I'm a bit uncertain whether it is coming from the urethra or the vagina.
At the end of urination, I also feel a slight sensation of gas expulsion.
What could be the issue? Which specialist should I see?

Juzi, 20~29 year old female. Ask Date: 2020/09/02

Dr. Du Shixi reply Urology


Hello: This situation is very rare, unless there is a fistula or if a urinary catheter or bladder examination has been performed recently.
If a urinary catheter or bladder examination was done recently, it may resolve on its own; however, a fistula may require specialized treatment.
Gynecology, urology, and colorectal surgery may all be relevant.
It is important to first confirm whether there is gas being expelled.
Wishing you good health.

Reply Date: 2020/09/02

More Info


Experiencing gas during urination can be a perplexing symptom, and it’s understandable to seek clarity on what might be causing it. While it may seem unusual, there are several potential explanations for this sensation, and it’s important to consider various factors that could be contributing to your experience.

Firstly, one possible cause could be related to the anatomy of the urinary and reproductive systems. In females, the urethra (the tube through which urine exits the body) is located close to the vagina, and sometimes, air can be trapped in the vaginal canal or urethra. This can lead to the sensation of gas being expelled during urination. Similarly, in males, while the anatomy is different, there can still be sensations that might feel like gas due to the proximity of the urethra to other structures.

Another potential cause could be related to pelvic floor dysfunction. The pelvic floor muscles support the bladder and other pelvic organs. If these muscles are tense or not functioning properly, it can lead to unusual sensations during urination, including the feeling of gas. Conditions such as pelvic floor dysfunction can also lead to urinary urgency or frequency, which might further complicate the sensation you are experiencing.

Additionally, gastrointestinal issues could be contributing to your symptoms. Conditions such as irritable bowel syndrome (IBS) or gastrointestinal reflux can lead to increased gas production. If there is excessive gas in the intestines, it may create pressure that can be felt in the pelvic region, potentially leading to the sensation of gas during urination.

Infections or inflammation in the urinary tract can also cause unusual sensations. A urinary tract infection (UTI) can lead to discomfort, urgency, and changes in urination patterns. If there is inflammation in the bladder or urethra, it could potentially lead to sensations that mimic gas expulsion.

Given the variety of potential causes, it is advisable to consult a healthcare professional for a thorough evaluation. You may want to start by seeing a urologist, who specializes in urinary tract issues, or a gynecologist if you are female, as they can assess any potential anatomical or functional issues. They may perform a physical examination, and if necessary, recommend tests such as urinalysis, imaging studies, or pelvic floor assessments to determine the underlying cause of your symptoms.

In summary, while feeling gas during urination can be disconcerting, there are several potential explanations ranging from anatomical considerations to pelvic floor dysfunction and gastrointestinal issues. Seeking medical advice will help clarify the situation and guide you toward appropriate management or treatment options. Remember, it’s essential to communicate all your symptoms clearly to your healthcare provider, as this will aid in making an accurate diagnosis.

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