My daughter was playing with her cat tonight and noticed some blood-- she was checking the cat for injuries and found this bare patch on her tail that was raw and slightly bleeding. It looked like it was oozing a bit as well.
I've read that the common causes are overgrooming due to stress or allergies to fleas, but I'm not sure if that looks the same as this, or if it gets bad enough that it would bleed?
We'll take her to a vet tomorrow, but I wanted to see if anyone could confirm what this is. I was worried that she had gotten into a fight, but there's no sign of tooth / claw marks and she seems fine except for this.