Yes, you can fart underwater and create a visible trail of bubbles. When you release gas, bubbles rise to the surface because they’re lighter than water. The size and number of bubbles depend on the speed and amount of the fart—slow releases produce small bubbles, while quick bursts create larger ones. These bubbles not only look amusing but also make distinct sounds and can have other interesting effects you might notice.
Whether you’re swimming in a pool or relaxing in a bathtub, farting underwater is surprisingly common and often quite funny. You may have wondered if you can actually see a fart underwater. The answer is yes—science explains exactly how this works. When you release gas underwater, bubbles start to form immediately. The fart, made of nitrogen, carbon dioxide, hydrogen, methane, and other gases, escapes your body and turns into bubbles as it enters the water.
These bubbles are lighter than water, so they quickly rise to the surface. As you let out a fart, you’ll see a trail of bubbles behind you. The bubbles you notice are the gas escaping, and their size, number, and speed depend on how much gas is released and how tightly your muscles are held. If you release gas slowly, you get a string of small bubbles. A quick, forceful fart will create larger bubbles that rush to the surface. This bubble trail is what makes your underwater fart visible—and often a source of laughter.
There’s more than just the visual effect; there’s also the sound. Farting underwater makes a unique, sometimes loud noise. This is because the bubbles, as they rise and pop at the surface, produce sound waves. Sound travels faster and farther in water than in air. That’s why even a small fart can sound louder in a pool or bathtub. The noise you hear comes from bubbles forming, moving through water, and finally bursting at the surface.
The underwater environment also affects how your fart behaves compared to in air. Water’s resistance slows down the gas as it escapes, shaping both the bubble pattern and the sound’s pitch. Water can dampen the smell, as the gas spreads out before reaching the air, but it doesn’t get rid of it completely. If you’re close to the bubbles when they burst, you might still catch a whiff.
Conclusion
Yes, you can fart underwater and it will create a trail of bubbles. When you release gas in a pool or tub, it escapes and rises, forming visible bubbles. It’s a normal—and often amusing—part of human biology. If you see bubbles underwater next time, now you’ll know the likely cause. Just hope it goes unnoticed by others!
