Likely true: The hymen in most women is a thin tissue membrane that sits at the entrance of the vagina.It usually has an opening about a centimeter in diameter before some event stretches or tears it. Bleeding with first vaginal sex is the classical event used in some cultures to define virginity. Since the erect penis has a larger diameter than the hole in the hymen, sex will stretch or tear it.
Answered 10/8/2017
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