Heavy sweating can have an effect on the amount of urine. This is because urine volume is mainly related to the body’s intake of water, and another condition is related to the elimination of fluids, such as sweating, and the loss of water from the respiratory tract. If you drink a certain amount of water and sweat a lot, it will cause a decrease in urine output. So a lot of sweating has an effect on the volume of urine, causing a decrease in urine volume. This is a normal physiological situation. In the case of heavy sweating, it is best to rehydrate in a timely manner and also to replenish electrolytes appropriately to avoid dehydration and electrolyte imbalance. A large amount of sweating will cause a corresponding decrease in urine output, which is not particularly serious and is a normal physiological phenomenon.