Urine occult blood +- usually refers to weakly positive urine occult blood test during routine urinalysis, and hematuria if a small number of red blood cells are seen in the urine under high magnification microscope. Urinary occult blood +- usually refers to a weakly positive urine occult blood test during routine urine examination, which may be related to strenuous activity and overwork; at the same time, women may also experience the above condition at special times, and this condition usually does not require treatment. The presence of urinary occult blood +- in some people may also be associated with kidney disease, such as glomerulonephritis, nephrotic syndrome and other kidney diseases. Some urinary occult blood may also be related to urinary system diseases, such as urethritis, urethral stones, cystitis, urinary tumors, etc. These diseases need to be treated according to the cause. If you find urinary occult blood, it is recommended to go to the regular hospital in time, follow the doctor’s instructions related to the examination, after a clear diagnosis, under the guidance of a professional doctor standardized treatment.