High nitrite, it is recommended that we should drink more water can be effectively prevented. It is also recommended that you should eat more green vegetables and fruits, eat more coarse grains, coarse fiber diet, less intake of sodium and protein, it is recommended that patients with high nitrite should drink more than 2000 ml of water per day. can effectively form more urine, effectively dilute the concentration of stone forming substances in the urine, such as nitrite, reduce crystal deposition and effectively promote the discharge of nitrite. It is also recommended that you can drink water once before going to bed and once at night.