The color of urine of patients with uremia is light and clear compared to that of normal people, and may appear yellowish or colorless and transparent, and the color of urine may be turbid or hematuria when some patients with uremia have high levels of urinary proteins or infections. The detoxification function of the kidneys of uremia patients will gradually weaken, and the toxic substances or metabolites discharged in the urine will be relatively less, so the color of the urine will gradually become lighter, and more often show a light, clear color. With the aggravation of kidney function decline, its drainage function will also be affected, some patients with UTI are prone to oliguria or anuria. With the gradual loss of kidney function, the toxic substances or metabolic waste accumulated in the body cannot be excreted with urine, the color of urine will become lighter, and prone to metabolic acidosis or water and electrolyte balance disorders, which need to be treated by hemodialysis and other means. In addition, some uremic patients with high levels of urinary protein or infections, the color of the urine may be more turbid or the appearance of hematuria. If there is a change in the color of urine or abnormal urine output, it is recommended that the patient go to the hospital in a timely manner, follow the doctor’s instructions to complete the relevant examinations, a clear diagnosis and early treatment.