Would blood in urine from kidney problems be there EVERY time they urinate?
It is possible for blood to be in the urine in such low concentrations that you wouldn’t be able to notice it, but it will show up in a urine test. At other times, there may be so much blood that your urine looks like nothing but blood. It is also possible for the bleeding to stop periodically and start back up. Hopefully you can get into your doctor soon.