I've seen a WL recently who has lots of sliced scars all over her arm, like they intentionally cut themselves with a razor or knife. I tried to ask the WL what happened, but she didn't tell. What does this mean? I think in the past I've also seen a WL that has sliced scars all over her arms, but I just ignore it the first time.

Is this an indicator that she has some sort of drug addiction? Sorry, I know nothing about drugs, I just love punting.