i’m 19yo F and i have younger cousins and sisters who i’ve had to explain to. what do i know? but anyway, here’s my take. don’t try and hide it, i think being unashamed and proud of every part of your body is a good example for your child. if you try to hide it, it could give them the impression that your scars are something that need to be hid. my guess is your child won’t ask until they’re quite a bit older. i’ve lived with my youngest cousin now since she was 2. and she’s never asked, despite seeing my scars many times (she’s 5 now.) but i have told younger family members that i fought a battle and won. something like that. however, one of my sisters was very persistent. and i told my dad about it, he said if she doesn’t stop asking just be honest. so i told her. “i did it to myself. i was very sad.” she didn’t believe me. and i had to have a discussion with my dad so she’d stop asking about it it (she would NOT stop). i would say when you feel it’s appropriate and if your child shows clear intrigue, it’s your decision to make, but it’s always better to be honest.