Male 5mo after neutering, testicles went from pink to purplish
My 5mo male kitty had his desex surgery 8 days ago, he's been eating sleeping and going to the bathroom as if nothing has changed. I'm pretty sure there is more than one way to do the surgery, for our surgery the doctor made two small incisions, one on each testicle, took out the contents, and no stitches required.
I have been monitoring the area many times a day, there was no bleeding or anything. Today is day 8, it looks as if his testicles are a lot darker now. They used to be pink, now they appear to be purplish.
Is this normal or does he have internal bleeding? Should I be concerned? There has been no changes in his behaviour whatsoever, but I was told cats do not show pain very well.