We are having issues with our Guinea pig (unfortunately called squirrel) who has been having recurring issues with blood in his urine. It varies from a lot to just spots, dark red and pink and will be there for a few days then go. It has been on and off for a few months, sometimes with weeks in between with no sign. He doesnt act like hes in pain with no squeaking when he pees and acting and eating as normal. Hes had an xray and no stones present, had 2 rounds of baytril and metacam and now on septrin and metacam. The first round of baytril and metacam stopped it for a while then it came back and it continued throughout the long second course of baytril and then stopped when we ended medication. I am so confused as to what it is! Our vet is contacting the exotic vets and theyve suggested a bladder culture but no sign of anything odd on the xray done recently. If anyone has any tips that would be great. We have also changed his diet around 6 months ago when he had bladder sludge due to too much calcium and that has cleared with no further problems. Thanks!