The cause of high urine sugar may be physiological factors, remove the triggering factors after the urine sugar can generally return to normal, there is no great harm; there may be pathological factors, such as diabetes, kidney disease, etc., depending on the situation, there may be diabetes progression, diabetic nephropathy, nephritis, renal failure and other more harmful situations. 1. Physiological factors: in some physiological situations, such as excessive intake of sweets, stress, etc., the blood glucose value exceeds the renal glucose threshold, there will be a transient elevation of urinary glucose, which can usually return to normal after the removal of the causative factors. 2. Diabetes: high urine sugar suggests that may be suffering from diabetes, to the hospital in a timely manner for fasting blood glucose, postprandial blood glucose and other tests, combined with the “three more and one less” symptoms for diagnosis. Diabetes patients should be actively treated, good sugar control will not have obvious harm. Poor glycemic control will lead to a series of complications such as diabetic nephropathy and diabetic foot, affecting the quality of life of patients. 3. Renal lesions: If the monitoring of patients with normal blood glucose and elevated glucose in the urine, suggesting possible renal lesions, we should promptly go to the nephrology department for examination, a clear diagnosis. When the urine sugar is elevated, it is necessary to go to the regular hospital in time for examination, clear diagnosis, and follow the doctor’s instructions to choose the treatment plan.