Urine like washing water is a symptom of hematuria, which may be caused by exercise hematuria, or it may be caused by ureteral stone, or it may be caused by bladder cancer. 1. Exercise hematuria: Exercise hematuria can lead to hematuria in athletes or healthy people after exercise, this symptom can be relieved within 24 hours to 3 days after stopping exercise, and the patients do not have other discomforts, which is a physiological phenomenon, and it can be avoided by suddenly increasing the intensity of exercise. 2. Ureteral stones: Ureteral stones can also lead to hematuria, which is caused by the mechanical damage of stones to the mucous membrane of ureter. 3. Bladder cancer: bladder cancer is a kind of malignant tumor occurring in the bladder, the disease may be related to smoking, heredity, environment and other factors, which can also lead to hematuria in patients. Hematuria may also be caused by other factors. After eliminating physiological factors, if the symptoms of hematuria continue to be unrelieved, it is recommended to go to regular hospitals in time to find out the cause and ask the doctor to dispose of it.