Excessive urination and dry mouth should be treated differently. Dry mouth is a precursor of uremia, while excessive urination is one of the early symptoms of uremia. It is common for patients with uremia to have a dry mouth because the doctor will ask the patient to limit water intake. In addition, too much salt intake can also cause dry mouth. In the early stage of uremia, the glomerular filtration rate has been reduced, which means that less water is excreted through the glomerulus, but the reabsorption function of the renal tubules decreases very obviously, and the water filtered through the glomerulus cannot be reabsorbed by the renal tubules, and the patient’s urine will increase, especially at night. In the late stage of uremia, most of the glomeruli and renal tubules are out of reality, and the water filtered through the glomeruli is very little, and most of the water is stored in the body, so the urine will be greatly reduced, or even no urine. Patients with uremia should go to the nephrology department in time, cooperate with the doctor for treatment, eat reasonably and work and rest regularly to avoid further aggravation of the disease.