Diabetic patients should monitor kidney function regularly and have urine microalbumin checked regularly at least once a year. If there are already typical symptoms of kidney damage such as swollen eyelids and lower limbs, they should go to the hospital for a comprehensive examination as soon as possible. In addition, diabetic patients should pay attention to a light and low-salt diet in their daily life, and the daily protein intake should be 0.6-0.8 grams per kilogram of body weight. They should also quit smoking and limit alcohol, exercise properly, keep a happy mood, get enough sleep and not stay up late, which are all beneficial to blood sugar control and kidney maintenance.