I wonder whether the men's hanging penis normally tilts to left or to right and why. Is some authonticated data available about it.

I asked Google and

Penis Hang


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Question: When you stand up, does your non-erect penis hang to the left or right at all?
(a) no -- it hangs straight down 56.7%
(b) it hangs to the left slightly 27.2%
(c) it hangs the right slightly 15.3%
no answer 0.7%

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Among right-handed readers who masturbate with the right hand only:
(a) straight 57.0%
(b) left 27.2%
(c) right 15.8%

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Among left-handed readers who masturbate with the left hand only:
(a) straight 65.5%
(b) left 25.0%
(c) right 9.5%

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It's commonly believed that a penis hanging to one side is caused by the person masturbating with the other hand. From this Survey's findings, this appears to be a myth. It probably has to do with how the penis is usually positioned in one's pants; over the years, this may cause the penis to hang to that side.