The cause of hematuria is multifaceted, from the situation you provide can not determine the cause suggest four aspects of the examination: 1, to determine the hematuria, you can perform routine urine examination. Because some pigmented urine is also red in color, it needs to be excluded. 2, to determine the site of hematuria production. According to the period of time when hematuria appears, that is, whether it appears at the beginning, the end, or the whole time when you urinate at one time. Determine whether it is bleeding from the kidney, ureter or bladder or urethra. 3. Determine the cause. There are various diseases in the urinary tract that cause hematuria, among which tumors, stones, tuberculosis, obstruction or nephritis can occur. We can roughly predict the possible diseases according to the symptoms that appear at the same time, and then choose ultrasound, CT, or imaging to determine the cause. 4. Determine the effect of hematuria on the body. Blood is drawn for renal function tests.