Does anyone know what happen to her whist where the blue and black wristband is

I mean wrist not whist

im only guessing because i’ve seen other people wear those wristbands but its probably covering a scar(s) either sh or someone hurt her but i don’t think they told us about tbat yet

Oh thanks

I personally thought it was related to basketball and to the dude since he stopped playing sports for some unknown reason (I just guessing, I don’t have good memory)