My Cat Has Trichotillomania

Described by Miriam-Webster as: noun; Etymology: New Latin, from trich- + Greek tillein to pull, pluck + New Latin mania: an abnormal desire to pull out one's hair.

He spend quite a bit of time grooming, which is normal for a kitty, but this white patch on his belly gets an inordinate amount of time, and I'm not sure if he is pulling the hair out, or has prevented hair from growing in...not sure...

It might be a stress thing, though I can't imagine his life is THAT stressful...