White particles excreted in the urine may be the epithelium shed by the normal urinary tract mucosa, or it may be the cause of urinary stones, prostatitis and other etiologies. 1. Normal urinary tract epithelial cells will have metabolism, shed epithelial cells can be mixed in the urine, if the amount is more, can be gathered together to form white particles. 2. If the patient himself has urinary stones, such as kidney stones, ureteral stones, if the stones are relatively small, after a large amount of drinking water, exercise may be discharged from the body, there may be white granular objects in the urine, hard texture, usually accompanied by pain in the lower back and abdomen, or even blood in the urine. 3. Patients with chronic prostatitis may excrete prostate fluid, which may be white and granular and is usually accompanied by frequent urination, urgency, and dysuria. Therefore, if there is white granular material in the urine, it is recommended to go to the hospital.