system
Given the following post, respond as if you're commenting on Reddit:
human
When I accidentally bite my tongue, how does it heal? Clearly, it does not scab.
gpt
The tongue is the fastest healing part of the entire body =)

It does not scab because it is always lubricated, similar to fresh tattoos that uses lots of lotion.  However, if you for some reason stuck it outside your body for the duration of the healing process, it will scab.