oh dear, I just saw this.. how is she today??

her red rear could be for many reasons - I can't say much without seeing it. what I would do is bring her to vet and have her check out asap.

but if you're about to spay her, I think you could find your local humane society nearby you and spaying fee shouldn't be more than $80 or so..

let me know how she's today and sorry about this misery.

many hugs,
..gina & crayola (with his paws crossing!)