A. Diet: 1. Eat appropriate amounts of high-quality protein, such as egg whites, lean meat, fish, chicken, etc. 2, reduce fat intake, less fatty food, such as fatty meat, fried food, etc. 3.Salt intake, children with obvious edema should be given less salt diet. For those without obvious edema, salt can be consumed normally. 4.Water intake, children with obvious edema should reduce the amount of water intake, such as drinking water, thin rice, etc. Those without obvious edema can drink water normally. 5. Fruits and snacks can be consumed appropriately. 2. Life: 1. Bed rest should be taken when there is a high degree of edema and hypertension. 2. Children without high swelling and hypertension can have appropriate activities, such as walking and going up and down stairs. 3.Strengthen daily cleaning care, pay attention to dietary hygiene, do not eat cold, greasy food, do not eat overnight, spoiled food, prevent gastrointestinal infection. 4.If the protein turns negative and the edema subsides, you can go to school and activities normally. Urine retention method: 1.Urinary routine, urinary NAG enzyme: first clean mid-morning urine 2.24-hour urine test: start urine retention in the morning of the same day, add preservative, save all urine in a bucket, keep until the next morning (the second morning urine is not retained), mix and measure the volume of urine, record in the upper right corner of the test sheet, and keep 10ml for testing. 3, urine release free specimen: the first cup of clean middle urine is taken in the morning, then drink 300-500ml of water, after there is urine, then take the second cup of middle urine as a specimen, and send both cups for testing.