Theoretically, drinking more water will definitely lead to more urine, but in practice, not drinking more water will definitely lead to more urine, under normal circumstances, if you drink more water, the body’s water content is more, after the kidney filtration can produce more urine, to maintain the body’s water-electrolyte balance. But if a kidney disease occurs, there can be little urine, such as glomerulonephritis, nephrotic syndrome, kidney failure, etc., when the filtration capacity of the kidney decreases, the water drunk into the body can not be discharged through normal kidney metabolism, the amount of urine will be reduced, but also edema. If there is urethral stricture, prostatic hyperplasia, drinking water produces more urine, but stored in the body can not be excreted out of the body by itself, and even urine retention and other urine volume does not occur. If the kidneys function normally, drink more water but there are factors of water loss, such as excessive water evaporation from the skin in high temperatures, excessive sweating or diarrhea, or excessive water loss from the intestines, the volume of urine will not be much at this time.