Drinking too much water and urinating too much may be caused by diabetes mellitus, urolithiasis, or may be caused by mental irritability. This situation requires a high degree of attention, once the symptoms of polyuria are found, go to the hospital in time for diagnosis and treatment. Drinking too much water, the human body has the following kinds of harm: First, water poisoning, water poisoning does not mean poisoning due to water deterioration, water containing toxic substances, but drinking too much water, resulting in a large loss of sodium ions. Second, heavy dampness, drink too much water, the most direct consequence is easy to affect the spleen and stomach function. Third, the heart and kidneys are damaged, the amount of urine discharged after drinking a lot of water, more than the amount of water drunk into.