Spotting blood 10 days after spay

[AnneVan]

My foster cat had a litter of three two-week-old kittens when she was pulled from the pound, but they did not survive. So, about two weeks after the third kitten died, the mother cat was spayed. Ten days later (yesterday) I noticed bright red blood spots on the floor. I took her to the vet's office and she was seen by a vet tech who gave her an antibiotic shot. Today I am not seeing any more blood spots. The vet tech mentioned a possible UTI (but the blood was bright red and not diluted with any urine) or a result of the spay.

The cat is eating and drinking well, playful (she is only about a year old) and generally seems content. Should I be concerned now that the blood spots seem to have stopped?

[AnneVan]

I would say that the spotting was vaginal. If it had been from the bladder, I believe the blood would have been diluted with urine. These were bright red blood spots. However, since Sunday I had not seen any more spotting. Yesterday my foster cat was adopted. The new family is aware of the medical history and will keep an eye out for any further spotting. I have not been able to find anything on line about this happening following a spay, so it must be most unusual.

[opus88]

I would assume the blood is coming from her bladder and not vaginally?
I would keep a close eye on her she definitely may have a UTI and need more than just one shot of antibiotics....if you see more blood or if she stops eating and gets lethargic I sure would take her back and have a vet check her out, not just a tech!
good luck