Possible causes of frequent and urgent urination with hematuria: First, acute cystitis, when there is acute inflammation of the bladder, there can be frequent and urgent urination, and there is terminal segment carnal hematuria. The patient’s body temperature is usually normal or mildly febrile, and there is usually no back pain. A routine urine examination is recommended. If a large number of red blood cells and white blood cells are seen in the routine urine and the leukocyte lipase count is elevated, the diagnosis of infection can be confirmed. Further anti-infection treatment is recommended. Secondly, acute pyelonephritis can also appear with frequent urination and urgent urination with carnal hematuria, at which time the patient mostly has fever and lumbago, and the body temperature can be above 38.4℃. It is recommended that routine urine examination and urine culture examination be performed. If red blood cells and white blood cells are seen in the routine urine examination and cellular tubularity can be seen, the diagnosis of acute pyelonephritis can be confirmed. Intravenous infusion of antibiotics for one week and oral antibiotics for 7 days after the symptoms disappear are recommended for consolidation.