The patient with nephritis can eat lettuce, nephritis patients should be low salt, low fat, high quality low protein diet, low salt is to eat less pickled food and taste salty food; low fat is cholesterol and fat-rich food to avoid eating; high quality protein is high bioeffective protein, mainly animal protein, such as fish, meat, eggs, to avoid the intake of plant protein-rich food, but soybean products in soy milk, dried beans However, soy milk, dried soybeans, tofu and essential amino acids are similar and are currently considered high quality proteins. Other staples or nuts peanuts, melon seeds, pistachios in the amount of essential amino acids is less, which can lead to more metabolic waste, increasing the burden on the kidneys, while not recommended to eat more. Lettuce is low in fat and protein, so it can be eaten. The chronic nephritis should be actively controlled blood pressure, reduce proteinuria, chronic nephritis is a chronic progressive disease, until the end stage of renal failure, uremic phase, once the symptoms of uremia, such as symptoms of the digestive system, like nausea, vomiting, loss of appetite, severe upper gastrointestinal bleeding, heart failure performance, chest tightness, shortness of breath, severe anemia and anemia is difficult to correct, itchy skin, uremia The manifestations of encephalopathy, such as mental confusion, hallucinations or even coma, this is the time for renal replacement therapy, such as hemodialysis or peritoneal dialysis treatment.