Hematuria (++++) indicates a high level of red blood cells in the urine, and it is important to drink more water and urinate more often to prevent the formation of blood clots. The presence of red blood cells in the urine indicates bleeding in the urinary system, and the cause of the bleeding must be found. It may be caused by trauma or urinary tract infection, it may be a urinary tract stone that damages the mucosa and causes bleeding, or it may be a urinary tract tumor or urinary tract tuberculosis. One of the most important things to pay attention to is urological tumors. Many urological tumors are painless hematuria of the naked eye, which may occur suddenly or disappear suddenly. Be sure to do ultrasound examination to determine whether there is a tumor. Only when the primary disease is found and treated will the hematuria be completely relieved.