Urine sugar 4 plus may be caused by physiological factors, may also be caused by diabetes, Cushing’s syndrome and other diseases, physiological factors caused by hospitalization is not required, the disease caused by hospitalization may be required. 1. physiological factors: if a large number of carbohydrates can cause blood glucose one-time more than the renal glucose threshold resulting in positive urine glucose, such cases are normal physiological phenomena, do not need to be hospitalized. 2. diabetes: diabetes can cause positive urine sugar, for no accompanying serious complications and blood sugar is only mildly high diabetic patients usually do not need hospitalization, follow the doctor’s instructions for medication, regular monitoring of blood glucose can be; but for accompanying diabetic cardiovascular lesions, renal lesions, and other serious complications or blood glucose elevation of diabetic patients need to consider hospitalization. Patients who have 4 plus urine glucose are advised to go to the hospital and ask the doctor to make a judgment and clarify the cause of the disease.