Having hematuria but a normal urine test may be due to a change in the color of the urine appearance caused by diet or certain medications; or because the hematuria is intermittent. Hematuria but normal urine test, may be certain diet (such as dragon fruit) or certain drugs (such as furantoin) and so on consumption led to changes in the appearance of the color of the urine, manifested as red urine, but is not the true meaning of hematuria. Hematuria common causes such as urinary tract infections, urinary stones, glomerulonephritis, etc., hematuria can be intermittent, may be in the examination of the urine routine is no hematuria, and the results of the examination of the seizure is inconsistent. It is recommended that patients with hematuria go to a regular hospital in a timely manner, under the guidance of a physician to standardize the examination and treatment.