When the diabetic’s blood sugar rises, the water in the surrounding tissues is absorbed, and the body is in a state of water loss, which is called “hypertonic” in medical science. If your internal organs are “pickled” in hyperglycemia, the water in the organs is sucked out by the blood sugar. Diabetic non-ketotic hyperosmolar coma occurs when there is severe water loss, and it has a high mortality rate. In diabetic patients with elevated blood glucose, a large amount of glucose cannot be used by the body and is excreted into the urine, causing an increase in urine osmolality, while the renal tubular reabsorption of water is reduced, and the volume of urine often increases. Patients show frequent urination, more often than 20 times a day, get up many times at night, affecting sleep, and the volume of urine increases. Due to polyuria and water loss, patients are thirsty and drink more water and more often. Many diabetic patients mistakenly believe that as long as they drink less water, the symptoms of polyuria will be reduced, in fact, this is a wrong understanding, because polyuria is caused by high blood sugar, not the result of more water, on the contrary, drinking too little water is not conducive to diabetes. For the treatment of thirst, we must first solve the problem of high blood sugar. Only after the blood sugar drops, the symptoms of thirst can be fundamentally improved. Dry mouth not only brings painful symptoms, but also the salivary enzymes with digestive and protective effects in oral saliva are reduced, which not only affects the digestion of food, but also reduces the anti-infection ability of the mouth, thus making oral diseases – such as dental caries and gingivitis – occur one after another.