Infants and children with acute necrotizing enterocolitis have atypical symptoms, with the onset of the disease in the first 3 to 10 days of life. They are admitted to the ward due to prematurity or low weight, and during artificial feeding or during nasal feeding with a gastric tube placed in immature children due to incomplete establishment of the swallowing reflex, they are found to have retention in the stomach, followed by abdominal distention, vomiting, blood in the stool fever or temperature not rising, tachycardia or slow heart rate, abdominal muscle tension, abdominal distension, and erythema of the abdominal wall. What are the diseases that are easily confused? 1.Regular physical examination to achieve early detection, early diagnosis and early treatment. 2.Get a good follow-up to prevent deterioration. 3.Enhance physical fitness, improve your immune system, pay attention to the combination of work and rest, and participate in more physical exercise. 4.Prevent infection. 5, a reasonable diet can be more intake of high fiber and fresh vegetables and fruits, balanced nutrition, including protein, sugar, fat, vitamins, trace elements and dietary fiber and other essential nutrients, meat and vegetables, diversified food varieties, give full play to the complementary role of nutrients between foods, is also very helpful in the prevention of this disease. 6, avoid eating undercooked or spoiled meat, especially in the high season to avoid eating raw meat. 7, avoid eating large amounts of food that destroy protein hydrolysis enzymes in the intestinal tract, such as sweet potatoes, especially when eating raw seafood, grilled meat that may not be fully cooked (such as grilled lamb kebabs, etc.), and avoid eating large amounts of such food at the same time.