What do protein and blood in my urine mean?

Blood ; protein. This means there is a small amount of some source of blood ; protein in the urine ; the meaning of this needs to be looked at with any other lab abnormalities, signs/symptoms, clinical context. If nothing else abnormal, then blood with protein is entering your urine in some way. Are there symptoms like burning with urine, flank pain, recent infection, etc? See your doctor for more assistance.