Urine sugar 3 + whether serious, need to clarify the cause of increased urine sugar, as well as combined with the specific value of blood glucose, the presence of complications and other circumstances to determine a comprehensive, can not be generalized. If the urine sugar, blood sugar persistent high diabetic patients, generally more serious, it is recommended that timely medical control of blood sugar. 1. Physiological urine sugar 3 + can be seen in people who exercise vigorously, a short period of time a large number of intake of high-sugar foods, these causes of urine sugar 3 + often for a transient, generally not serious. 2. Urinary glucose 3+ is commonly found in diabetic patients, which is due to defective insulin secretion and/or action, causing glucose in the blood to be unable to be taken up and utilized by the tissues, resulting in elevated glucose in the blood, which in turn leads to elevated glucose in the urine. Diabetes should be treated at this point, and the medications available are insulin, metformin, and reglanercept. In addition to the above factors, it may also be caused by other diseases, it is recommended to seek medical treatment as soon as possible, and go to a regular hospital to find out the cause, so as not to delay the condition.