I really like picking my scabs and it is OK to want to do this. However by picking my scabs I am risking getting an infection and it stops the wound healing properly which can leave behind a scar.
Scabs are a special barrier that your body makes to heal your wounds and stop infection. If you pick you scabs then you may have to have medicine from the Doctor which can taste horrible. So the next time you have a scab, don’t pick it and let your body heel.
Unfortunately Anakin wasn’t as clever as you and he picked his scab – this is why he had a scar.