My friend has a two year old male, all black, longish haired cat. He is an indoor cat, no bathroom problems, lives with his sister, and a dog...but this isn't a new situation. He eats Iams regular food. Is current on his shots, healthy weight, etc.

My friend noticed about one week ago some weird hair loss on the kitty's belly- right below the rib cage, towards the cat's privates, and slightly onto his groin area. My friend said it looks as if he has been shaved for Sir Jury (which he hasn't). It looks like it is expanding both up and down, but not so much outwards. He hasn't noticed the kitty scratching or tearing the hair out, and there doesn't appear to be any sensitivity to the area- as he poked and prodded, but didn't notice anything.

Anyone have any ideas? Thanks.