Men try to read the most disturbing comments women get online back to them.

Poop anxiety isn't the most heavily studied medical field, but some estimates say up to a third of people suffer from some kind of anxiety around going to the bathroom in a public place or another person's home. That's not to be confused, of course, with anxiety poops; or the sudden urge to use the bathroom due to gut reactions to stress.

On the low end, people who suffer from pooping anxiety can feel ashamed or embarrassed. At the higher end, they may avoid social functions, public events, or leaving their own home entirely. This phenomenon also tends to affect women more than men. For some people, the worry gets so bad that they constipate themselves or refuse to eat, all because they're worried of what people will think of their bowel movements.

But you don't have to have extreme "shy bowel" to know the uncertainty associated with feeling a rumbly tummy while you're a guest in someone's house. There are a lot of unknowns to manage. How good is their soundproofing? Does their toilet actually flush properly? Will someone be waiting to go in right after me? Some people anticipate these worries and come up with elaborate rules and routines to leave as little evidence of their go as possible.

A guy took a simple question to social media: Should you always courtesy flush when you're a guest in someone's house? The answer sparked a huge debate about the secret etiquette of public pooping.

A toilet can be a terrifying sight if you suffer from poop anxiety. Photo by Point3D Commercial Imaging Ltd. on Unsplash

In a thread on the subreddit r/NoStupidQuestions, the OP asked: "My mother tells me that at other people's houses, when going to the bathroom, it's expected to do a 'courtesy flush'. Is this a real thing?"

For the uninitiated, a courtesy flush is when you flush halfway through your "go." The thinking is that it helps get rid of odors before they build up. Not only did the poster's mother advocate for courtesy flushing, she insisted on a very specific ritual when visiting other people's homes:

1. Always carry Poopurri and spray before you go
2. Flush halfway through your session
3. Flush at the end (obviously)
4. Clean toilet bowl with wand...every time!

If it sounds a little extreme to you, you're not alone.

However, some commenters were extremely pro-courtesy flush.

These are the kinds you have to think about if you visit someone else's house. But some people with bathroom anxiety live in public spaces like dorms or apartments with communal bathrooms, and it's a challenge for them every day. The courtesy flush is a commonly recommended practice by these folks.

"That’s good advice. First flush on delivery, second flush with clean up. Reduces odor and skid marks."

A few people noted that the courtesy flush is common in jails and prisons, of all places. Due to the tight (extremely tight) quarters, inmates are encouraged to repeatedly flush while they go. I don't want to know what the consequence might be for violating this code.

Others claimed the courtesy flush was a waste of water:

"Flushing twice seems very wasteful in my opinion. I would not like a guest to do that."

"No, please don't waste my water. But do make sure everything goes down."

"If someone did that at my house I'd be low key annoyed at them for wasting water."

Experts agree that the effectiveness of the courtesy flush is very much up for debate. Does it mildly lessen odor? Maybe. It's also a gigantic waste of water. Older toilets can use up to six gallons per flush—yikes! An extra flush is also questionable at best when it comes to sanitation—flushing poop with the lid open is known to spray bacteria all over the bathroom. Yuck.

"Everyone poops, I don't want my guests worrying about it," wrote one commenter. "Crack a window if it's like, lethally stinky, I guess. If you clog the toilet, the plunger is in a plastic tub right there. If you need help, cool, now we have a funny story."

The courtesy flush, however, was only the beginning of the OP's tips for pooping in public.

- YouTube www.youtube.com

Some commenters were on board with OP's mother's idea of using the toilet brush if it's available:

"If there's some brown stuck to the porcelain after I flush, and if there's a toilet brush on hand, I give it a quick cleaning and a second flush. But not if things look clean otherwise," someone wrote.

Another commenter had an even more advanced idea: "You can also float a strip of toilet paper on top of the water before you poo. Gets wrapped in paper as you drop off your delivery and less likely to leave skid marks in the bowl."

Of course, commenters in threads all over the Internet sing the praises of Poo-Pourri, or even carrying a lighter with you at all times to burn up some of the stinky oxygen. And how's this for a pro-level tip?

"Tip for the courtesy flush.. if one who finds it hard to poop in a public bathroom because you don’t want people to hear you. Flush just right before you push and the sound of the water will cover the sound of gas etc and it will go right down with the water so very minimal smell."

Others insisted that they will seek out the furthest bathroom from the main area of activity, such as an upstairs bathroom, or one in the basement. "I'd say it's polite to not [go] in the downstairs toilets, especially during the day and if they open into living areas - which I suppose is the same as 'one for pee and one for poop'. It's mainly about not subjecting other people to your stench."

I mean, all you can do really is clap at the social-anxiety-fueled ingenuity on display. The experts seem to agree here. Even Healthline recommends carrying air purifier spray, lining the inside of the bowl with toilet paper to absorb sound, and flushing several times to reduce anxiety worries. Other "real world experts" on TikTok have no shortage of ingenious ideas:

Whatever you do, just remember to wash your hands, especially if they're coming into contact with toilet water.

The general consensus is that, when pooping at someone's house, basic etiquette applies. Clean up after yourself to a normal degree, but remember, as the saying goes: Everybody poops.

Some people are really protective over the bathrooms in their homes, which is their right. But if that's the case, they really shouldn't be having guests over and expecting them not to partake in normal human biological behaviors.

Some of the advanced tips shared by anxious-pooers might help, but try not to send yourself into a tailspin trying to cover your tracks. In extreme cases of bathroom anxiety, experts say cognitive behavior therapy or even antidepressants may be needed. But the rest of us might just need to read that world famous children's book again.

This article originally appeared in March. It has been updated.