Hi there!
This post was made when my girl and strange on/off red and pink urine which seemed to go away after a day. The vet couldn’t find any cause other than just some random inflammation.
However, right now I am dealing with the same problem as you. About two months ago my girl was peeing blood (not pink/red tinged urine). I took her to the vet and they did all the tests - no stone (but a small speck in her bladder) but an infection. She was on antibiotics for 7 days.
About a week later, the blood returned. They prescribed me two antibiotics for 10 days and this seemed to help. I gave a few extra doses as my girl loves to spit some out (every single time
).
Now, three weeks later - she was crying when peeing and the blood is back. She’s now on antibiotics and metacam (if she will take it) again.
This most recent appointment I had, they seem to have a theory. In her X-Ray from about two months ago there was a small speck in her bladder and they weren’t sure if it was a stone, but if it was it would be small enough for her to pass. The vet advised that bladder stones have dents/divots that can hold bacteria inside. So even though the antibiotics could help her bladder, the infection can reoccur because it’s hiding in the stone (even if small). My vet believes she has now passed the little stone (there was a laceration on her urethra which could also be the source of the blood). So I’m hoping now that it’s been passed, these final antibiotics will kick the infection.
I’m not sure if this helps but I feel your pain! I hope your baby is okay