I recently had a physical and my urine came back with an rbc of 3-6. The doctor had me retake it and it was in the 26-100 category. In the last 3 years, i ve had blood in my urine at these appointments and have had 2 cytoscopies that yielded no cancer, yeah. However, this is the highest blood count ever. My father and grandfather both had bladder cancer. I m going to urologist on monday, but I am scared. Should I be more concerned about this rbc in urine or could it be just a kidney stone or something?