# On Average, How Many Toilet Visits Involve A Number Two?

**URL:** <https://boards.straightdope.com/t/on-average-how-many-toilet-visits-involve-a-number-two/728729>\
**Category:** Factual Questions\
**Created:** [August 24, 2015, 2:40pm UTC](https://boards.straightdope.com/t/on-average-how-many-toilet-visits-involve-a-number-two/728729 "2015-08-24T14:40:30Z")\
**Posts on this page:** 9\
**Page:** 1

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**Author:** ![HeyHomie](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/heyhomie/32/207_2.png) [@HeyHomie](https://boards.straightdope.com/u/HeyHomie)\
**Post date:** [August 24, 2015, 2:40pm UTC](https://boards.straightdope.com/t/on-average-how-many-toilet-visits-involve-a-number-two/728729/1 "2015-08-24T14:40:30Z")

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Imagine a toilet in a home with two healthy adults (a male and a female), and two healthy children (say, nine and six years old). Out of x number of visits to that toilet over a period of time, how many will be just a #1 and how many will be a #2 (or a #1 and a #2)?

Or to put this in other words, the average urination:defecation ratio for a human is \_\_\_\_\_?

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**Author:** ![pool](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/pool/32/4152_2.png) [@pool](https://boards.straightdope.com/u/pool)\
**Post date:** [August 24, 2015, 3:03pm UTC](https://boards.straightdope.com/t/on-average-how-many-toilet-visits-involve-a-number-two/728729/2 "2015-08-24T15:03:27Z")

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I’ve read the average is between 1 bowel movement every 2-3 days up to 2-3 bowel movements a day. Personally I couldn’t imagine only shitting once every couple days though, that seems odd.

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**Author:** ![TriPolar](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/tripolar/32/3008_2.png) [@TriPolar](https://boards.straightdope.com/u/TriPolar)\
**Post date:** [August 24, 2015, 3:08pm UTC](https://boards.straightdope.com/t/on-average-how-many-toilet-visits-involve-a-number-two/728729/3 "2015-08-24T15:08:23Z")

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The average will be off if you don’t count #3, #4, #5, and #6 also.

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**Author:** ![dolphinboy](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/dolphinboy/32/330_2.png) [@dolphinboy](https://boards.straightdope.com/u/dolphinboy)\
**Post date:** [August 24, 2015, 3:12pm UTC](https://boards.straightdope.com/t/on-average-how-many-toilet-visits-involve-a-number-two/728729/4 "2015-08-24T15:12:02Z")

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It varies greatly depending on your diet and exercise regime etc. I think for most people once a day or once every two days is typical, but 2 or 3 times a day may be normal for a particular individual.

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**Author:** ![LSLGuy](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/lslguy/32/5813_2.png) [@LSLGuy](https://boards.straightdope.com/u/LSLGuy)\
**Post date:** [August 24, 2015, 4:47pm UTC](https://boards.straightdope.com/t/on-average-how-many-toilet-visits-involve-a-number-two/728729/5 "2015-08-24T16:47:31Z")

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To actually answer the OP’s question, I’m gonna WAG it at 5:1 for men and 8:1 for women. I don’t think kids vs. adults would matter.

My personal experience is my cite. I leave the serious research to others.

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**Author:** ![bibliophage](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/bibliophage/32/7615_2.png) [@bibliophage](https://boards.straightdope.com/u/bibliophage)\
**Post date:** [August 24, 2015, 4:51pm UTC](https://boards.straightdope.com/t/on-average-how-many-toilet-visits-involve-a-number-two/728729/6 "2015-08-24T16:51:13Z")

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Figure on about 7 number ones for every number 2 unless you’re in India.  
One study found that healthy men urinate a median of 6 times during the day and 0.5 times at night. Cite: [Age and volume dependent normal frequency volume charts for healthy males - PubMed](http://www.ncbi.nlm.nih.gov/pubmed/19447412)

Another study found that healthy men urinate a median of 7 times per 24 hours. Cite: [Voiding frequency in a sample of asymptomatic American men - PubMed](http://www.ncbi.nlm.nih.gov/pubmed/15311017)

Healthy women urinate a median of 7 or 8 times per 24 hours. Cite: [Variability of 24-hour voiding diary variables among asymptomatic women - PubMed](http://www.ncbi.nlm.nih.gov/pubmed/12478137)

British men and women in answering a questionnaire claimed a median bowel movement frequency of 7 times per week or once a day. The same participants were asked to keep a journal of their bowel movements. The journal data were found to confirm that median frequency is indeed just about once per day. Cite: [http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1379343/pdf/gut00573-0122.pdf](http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1379343/pdf/gut00573-0122.pdf)

A study in Eastern India of men and women found median bowel movement frequency of 14 per week or twice per day. Cite: [Defecation frequency and stool form in a coastal eastern Indian population - PubMed](http://www.ncbi.nlm.nih.gov/pubmed/23875105)

One bowel movement per day is average in Italian adults. Cite: [http://www.researchgate.net/profile/Filippo\_Pucciani/publication/8681744\_An\_extended\_assessment\_of\_bowel\_habits\_in\_a\_general\_population/links/0fcfd510134bea37b3000000.pdf](http://www.researchgate.net/profile/Filippo_Pucciani/publication/8681744_An_extended_assessment_of_bowel_habits_in_a_general_population/links/0fcfd510134bea37b3000000.pdf)

One bowel movement per day is the median in preschool age children. Cite [http://adc.bmj.com/content/59/7/649.full.pdf](http://adc.bmj.com/content/59/7/649.full.pdf)

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**Author:** ![Senegoid](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/senegoid/32/6606_2.png) [@Senegoid](https://boards.straightdope.com/u/Senegoid)\
**Post date:** [August 24, 2015, 6:11pm UTC](https://boards.straightdope.com/t/on-average-how-many-toilet-visits-involve-a-number-two/728729/7 "2015-08-24T18:11:03Z")

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This may tie in with the design of modern low-water-usage toilets. Many people have complained about low-flush toilets not doing a complete water change, and often needing two flushes after a #2. (This was more so in the earlier days of low-flush toilets. Design have apparently improved more recently.)

Dave Berry did an article on low-flush toilets some years back, which raised such a massive popular response that he did at least two follow-up articles on it.

**Cecil Himself** discussed the question [here](http://www.straightdope.com/columns/read/2754/do-low-flush-toilets-actually-save-water). TL;DR: People pee a lot more often than they poop. So, a toilet designed to need just one flush after a pee but two flushes after a poop may be the optimal design for water conservation.

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**Author:** ![GusNSpot](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/gusnspot/32/436_2.png) [@GusNSpot](https://boards.straightdope.com/u/GusNSpot)\
**Post date:** [August 24, 2015, 6:18pm UTC](https://boards.straightdope.com/t/on-average-how-many-toilet-visits-involve-a-number-two/728729/8 "2015-08-24T18:18:50Z")

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Living in the country now, “P” & “Poop” together is my ratio for the toilet. So, a one to one ratio.

I do “P” more than that but I waste no water with the toilet doing it. 😃

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**Author:** ![JustinC](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/justinc/32/8083_2.png) [@JustinC](https://boards.straightdope.com/u/JustinC)\
**Post date:** [August 25, 2015, 9:27am UTC](https://boards.straightdope.com/t/on-average-how-many-toilet-visits-involve-a-number-two/728729/9 "2015-08-25T09:27:37Z")

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What day of the week is it and do both parents work
