Drinking a lot of water and then urinating more may be a normal physiological phenomenon, and drinking more water can increase the body’s metabolism, which can help detoxification, etc.; it may also be caused by renal diseases such as glomerulonephritis, tubular diseases, etc., so we should pay attention to find the cause and give active treatment. 1. Normal physiological phenomenon: Drinking a lot of water and then urinating more may be a normal physiological phenomenon. Because the gastrointestinal tract will enter the body’s circulation after absorbing water, and then filtered through the kidneys, which may lead to an increase in the amount of urine, if you drink coffee and other beverages will also have a diuretic effect, resulting in more urine. And drink more water can increase the body’s metabolism, help detoxification and so on. 2. Kidney diseases: such as nephrotic syndrome, glomerulonephritis, diabetic nephropathy, renal tubular disease and other kidney diseases can also lead to glomerular filtration and tubular reabsorption weakened, which may also lead to an increase in urine with a drink of water. There may be other reasons why you urinate more when you drink water, so it is recommended that you go to a regular hospital in time to improve the examination and clarify the cause of the disease, and then give targeted treatment under the guidance of the doctor.