If thirst is not quenched by drinking water and you urinate a lot, you may have renal insufficiency. It is recommended that you go to the hospital to check your kidney function and rule out kidney disease. Certain systemic diseases, such as diabetes, may also cause this symptom. It is recommended that the patient go to the hospital in the morning on an empty stomach to test blood sugar. If diagnosed with diabetes, take hypoglycemic drugs as prescribed by the doctor. In daily life, pay more attention to low-sugar diet, eat more coarse grains and other high-fiber foods, eat more vitamin-rich vegetables and fruits, and exercise more.