I'm sure this has been covered a million times, but just today I
noticed an odor in my cats, um, bum region.  Now, I don't usually go
around smelling my cats bums, but it was quite noticable and I
discovered a rather fishy smell (best I can describe).  My other cat is
fine.  I did give them some treats today, which is not an everday
occuance.

His bum is clean and he is fixed.  Could it be his scent glands?

It's not really a problem, just an annoyance.  I washed that area, but
the smell came back.

What we won't do for our pets... ugh.

Thanks!