This has been bugging me….pls help

So.. I would like to know if a doctor would be able to tell the difference between an internal vaginal tear caused by fingering and one that was caused by self exploration through insertion of a finger in vagina?

Another question, if a tear of this kind occurred a long Time ago, would a doctor notice it? And would they know how long ago it occurred?

So there r 3 qst in total .

Thank u so much!!