There is hematuria is not necessarily uremia, hematuria patients to distinguish whether it is true hematuria, pseudo hematuria is mainly due to patients eating certain foods or drugs lead to abnormal urine color, drugs have rifampicin, food have dragon fruit, beets, etc.. Patients with true hematuria also need to distinguish between glomerular hematuria and non-glomerular hematuria, which can be examined by perfecting the morphology of urinary erythrocytes, glomerular hematuria can suggest non-homogeneous hematuria, which is commonly seen in glomerular diseases, while non-glomerular hematuria is mainly derived from renal stones, urinary tract infections, renal tumors, kidney cyst rupture, and other diseases caused by hematuria. Patients with hematuria of glomerular origin who are accompanied by proteinuria, poor drug therapy, and continued progression of the disease can also eventually develop uremia.