Hmmm I've been just asking myself why for the opposite reason.
My chin with an amputated tail has had to wear a cover/sock on her stump for almost 10 years now.If I didn't keep it cover she would chew at the stump.
Well a few nights ago I noticed her sock was off and hesitated to look. She had not touched it.
and has not yet.
Though that doesn't mean she won't tonight.
Could he be rubbing it off? Sitting or sleeping in a new position causing friction?
Is it cold to the touch?
Willow's is always freezing and when the fur started to grow back I guess itchy as well. She's chewed it that much hair doesn't grow on it any more.
After 10 years it has shrunk to the size of pencil and is still very cold.