The white flocculent in male urine may be caused by physiological factors, urinary tract infections, urinary tract stones and other factors. 1. physiological factors: for example, drinking too little water for a long time, may lead to urine concentration or urine crystals, will make the urine in the presence of white flocculent, accompanied by yellow urine, urine odor, increase the amount of drinking water, more urination, can be restored to normal. 2. Urinary tract infections: for example, cystitis, when the infection is serious, it can generate a lot of purulent material, which will make the urine flocculent, accompanied by pain in urination, frequent urination, urinary urgency and other symptoms, which can be diagnosed by urine routine and urine culture and other tests. 3. urinary stones: for example, ureteral stones, small stones or extracorporeal shock wave lithotripsy, there are small stones discharged with the urine, mixed in the shedding of epithelium, which may make the presence of flocculent material in the urine. Men with white flocculent material in the urine, and accompanied by other obvious abnormal symptoms, may be the existence of disease factors, it is recommended to seek medical examination and treatment.