I have a cat wgo has blood in her urine for several months now. My vet has done an ultrasound to check for crystals. nothing. Also took a urine sample, by needle directly to the bladder. She has three rounds of antibiotics, one of baytril, two of zeniquin (Had to stop one, half way thru) because she started vomiting, i think a mix of flagyl and zenniquin together. Flagyl for giardia. My questionis the vet has really not told me anything except. she has no bacteria, in the urine. She is still peeing blood, though much less. what would you reccommend my next step to be.

