If there is occult blood in urine (+), there may be bleeding disorders. If the occult blood (+) is not accompanied by an elevated white blood cell count and bacterial count, it is considered to be caused by infection. It is recommended to take levofloxacin hydrochloride capsules orally, one capsule once, three times a day, for three consecutive days, and then review. ii. If there is pain in the lumbar abdomen, frequent urination, or urinary urgency, the presence of stones should be considered; after the size and location of the stones are confirmed by ultrasound examination, extracorporeal shock wave lithotripsy, medication for stone removal, or surgery should be chosen; third, further CT examination of the urinary system is needed to understand whether there are tumors in the urinary system. Such as bladder tumor, kidney tumor, etc. If the presence of tumor is confirmed according to the CT examination results, surgical treatment should be considered. After the primary lesion is removed, the occult blood can disappear.