The urine routine occult blood (+-) is not harmful to the body in the short term, but you need to look for the cause of the urine occult blood. It is recommended that if it is a simple case of urine occult blood (+-), review it after a week or two. If it turns (-) it may be a chance incidental event, and you can review it once or twice regularly later to see. If it is a long-term urine occult blood suggest to do a kidney ultrasound to see if there are kidney cysts and kidney stones. This is to rule out the presence of glomerulonephritis or IgA nephropathy, especially if there is a combination of urine protein, it is best to do a kidney puncture to see the pathology, and then if there is a problem, timely symptomatic treatment. For elderly people with long-term urinary occult blood and red blood cells (+), it is also necessary to exclude malignant tumors, and can be clarified by urological CT and urinary cytology examination.