Moon

It's cauliflower ears, I think you can see it mostly on fighters (like mma fighters). It's because of the brutal hits, causing trauma to the ears

The artist gives the fighter characters cauliflower ear, which is an impact injury common in professional athletes that leaves permanent disfigurment and inflammation of the ear. Its especially common in fighting/combat sports, like wrestling, judo, boxing, mma, etc.

I didn't even notice it until this comment. The more we know