Can you tell someone has lost their virginity after 3 years if they only done it one time

if a girl loses her virginity by a one time experience can a doctor confirm it after 3 years has gone by

If the hymen is broken, which it would be, then yes. The hymen doesn't grow back so that's the indicator used generally speaking.

There is no "real" evidence that supports the idea that a doctor can tell if a girl is a virgin or not. They can try but it's not always effective. If the hymen is broken then she's not a virgin but even if she had sex it doesn't necessarily mean her hymen was broken. Some girls take a few times of sex to have there hymen broken because you have to go deep and hard.

Your hymen can break without sex.

who cares if ur hymen is broken you should not lie to some about that cause the truth will alway come out you will fill guilty and you would break the trust you have with some one thats just so wrong to lie about never beeing with some one dont matter if it was ten years ago just tell the truth.

There is always forgiveness.
Tell your partner you had sex before, but that was in the past and he is the important one now.
We've all done things that we wish we hadn't.
Someone who loves you will not hold it against you.
Most importantly, you must forgive yourself today. OK?
You let go.
Cheers

no because a vriginty is a one time thing it would feel the same I gusse