Hey, Back in June of last year, my cat had what looked like a hard black bubble on his back. The black dot, after having fallen off, is replaced by an open skin sore - puss and blood (yes, I know it's gross). Note that the size of the open sore is almost 3 times the size of the original black dot. Any ideas? -- Lou
sounds like some kind of abcess. Also, some insects lay eggs under the surface of the skin.. Yuck. Take it to the vet immediately (you probably shoulda taken her as soon as you saw the black bump honestly).
Well it could have been an abcess, it would have needed Veterinary attention, also I've seen some Vaccination type reactions that sound similar. Most people don't see it untill a few weeks later. Was the black dot a scab? or an insect?