No, once the hymen is broken in a 10 or 12 year old girl is will remain broken.
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There is no such thing as an unvirgin hymen the hymen is broken
during intercourse.
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Males do not have a hymen. Theoretically, you can say that the
male's foreskin is their hymen equivalent, as it serves the same
purpose for the penis as a hymen does for the vagina.