Urine glucose 3 + suggests a significant increase in the level of glucose in the urine, whether it is serious or not, but also depends on the specific causes, common causes include dietary abnormalities, stress, caused by medication, diabetes, and kidney damage, and so on. Urine glucose just a transient increase is not serious, accompanied by abnormal physical condition or organ damage, belong to a relatively serious situation. 1. Eating a large number of sweets at one time, stress reaction, resulting in a rise in blood glucose, will lead to a transient increase in urinary glucose content, with the elimination of the cause, urine glucose can be returned to normal, and is not serious; the application of SGLT2 inhibitors (eg, dagliflozin, etc.) will cause glucose to be excreted with the urine, resulting in an increase in urinary glucose, if its own blood glucose control is stable, it is also not serious. 2. Diabetic patients with unstable blood glucose control during treatment, resulting in urine glucose 3+, is a serious condition, need to adjust the medication to maintain stable blood glucose; nephritis leads to heavy kidney damage, decreased absorption capacity, resulting in an increase in urinary glucose content, is also a serious condition. Urine glucose 3 + has not been able to relieve, you need to consult a doctor in a timely manner, under the guidance of the doctor standardized treatment, do not be negligent, so as not to miss the condition.