If the performance of frequent thirst without love of food appears, it may be diabetes, because thirst is a very characteristic performance of diabetes, not love of food is not a typical symptom of diabetes, but some patients will have a lack of love of food, mainly seen in elderly diabetic patients of advanced age. Because the function of the gastrointestinal tract of patients is relatively weak, in the case of combined diabetes, the autonomic function of the entire gastrointestinal tract is significantly disturbed, the diet will further deteriorate and the appetite will be very unsatisfactory, which is entirely possible. For people who have thirst and do not like to eat, the most critical thing is to promptly test and evaluate, to go to the hospital to improve the blood sugar test, thyroid function test, etc., to determine whether the patient is simply caused by high blood sugar symptoms, or combined with other diseases and other conditions caused by the comprehensive performance, in order to take targeted diagnosis and treatment program.