In order to diagnose whether hematuria is cancer or not, the most important thing is to confirm the diagnosis through imaging examination and pathological biopsy. Hematuria may be caused by inflammation of urinary system, tumor of urinary system, stone of urinary system. Hematuria can be seen when the mucous membrane is damaged by bacterial infection, bleeding can be seen if the stone damages the mucous membrane, and hematuria can be seen when the tumor invades blood vessels, but the three diseases need to be differentiated and diagnosed by abdominal ultrasound, abdominal CT, cystoscopy and other examinations. Through the abdominal CT to determine the presence of space-occupying lesions of the population, can be diagnosed as a tumor, but need to be further through the pathological biopsy to determine whether the tumor is benign or malignant, if through the pathological biopsy of the presence of cancerous tissue of the population, can be diagnosed as cancer, it is recommended to go to the regular hospital in time to avoid the deterioration of the condition of the doctor’s treatment.