Why does farts make noise

Your fart sounds depend on the vibrations produced as the gas exits your anal canal, says Dr. Despite popular belief, your fart noises have nothing to do with the flapping of your butt cheeks. He compares it to a musical instrument: the smaller the size of the exit point, the higher the pitch—and perhaps more squeaky it will be.

And the larger the opening at the moment, the lower the sound. And the expulsion velocity—or how fast the air is exiting your body—plays a role, too. If the air is coming out faster, your fart would be more likely to sound louder. Plus, if swallowed air is triggering your fart—as is the case in the majority of farts—they tend to be louder but less smelly , says Dr.

If your fart is primarily driven from digestion and bacterial fermentation, it will tend to be smaller in volume and sound, but stinkier. But there are some times when your farts may signal a medical issue. We know it's a hassle to switch browsers but we want your experience with CNA to be fast, secure and the best it can possibly be.

To continue, upgrade to a supported browser or, for the finest experience, download the mobile app. Wellness What makes farts smelly or noisy? And is it safe to hold these in? What does your fart say about you? Art: Jasper Loh. Khoo Bee Khim. Bookmark Bookmark Share.

View this post on Instagram. Related Topics Wellness health Advertisement. Expand to read the full story. Trending Topics No Content Found! This browser is no longer supported. Upgraded but still having issues? Not necessarily. Basically the noise factor has to do with three things.

First—volume, the amount of gas you pass. Second—force, how strongly the gas is pushed out. Third, the size of the hole the gas rushes through, that hole is, of course, the one we expel waste from, the hole in our rumps.

The whoopee-cushion noise comes from the end of the digestive track — that opening of your rear-end. When a lot of gas is pushed out of that tiny opening in short order, it vibrates the tissue.