Normal urine routine, hematuria may be urinary system tumor, but it may also be caused by trauma, urinary tract stones and other reasons. 1. Urinary system tumor: it mainly occurs in the urinary system, with the development of patient’s condition, the tumor tissue rupture causes bleeding, which increases the red blood cells in urine. 2. Trauma: due to the injury of urethral mucosa, rupture leads to bleeding, this condition is usually accompanied by painful urination or blood dripping from the urethra, resulting in hematuria. 3. Urinary tract stones: generally due to the human bladder stones, resulting in bladder mucosa or urethra mucosa damage caused by injury, so it will be prone to the phenomenon of blood in the urine. When the patient’s urine routine is normal, and the phenomenon of hematuria, it is recommended to go to the hospital in time to check, and according to the cause of the standardized treatment.