Why would my cat lose hair if he has no other symptoms of illness?

Question by imyreld: Why would my cat lose hair if he has no other symptoms of illness?
One of my cats one day just started going bald on the base of his tail. He continued to lose hair on his butt, insides of his back legs, and a little on his belly. He has not been sick or acting different in any way at all. Does anyone have any idea what would cause this?

Best answer:

Answer by eyJude
I have one cat that is almost completely bald… she only has the undercoat. so she use to be black and now is gray.

I have 2 different blood tests done by 2 diffent vets and they couldn’t find the cause. All systems and % were just where they were suppose to be… she eats like a horse… and is fine (except for the fact that she is 20)

now in winter she has to wear sweaters or Baby T shirts…

Cats believe WE were cats at one time and then we lost our hair and lost our ability to see at night … so maybe she is just becoming more human.

There was one article I read though and it said something about having problems with thier pancrias… but I ca’t find the article again so don’t know if that is true…

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