How does urine routine detect occult blood to do

Urine routine detection occult blood, that is, urine occult blood examination is positive, may be the occurrence of urinary system infection, or urinary stones, tumors, etc., it is recommended to do urinary color Doppler examination after the cause of symptomatic treatment. For example, infection occurs, can be given anti-infection treatment. If it is stones, drink more water, stones are relatively large, can be operated on.