Diaphragmatic hypoplasia is a diagnostic imaging sign of emphysema, lung abscess, or tracheal foreign body on lung x-ray. Its etiology is commonly due to emphysema, lung abscess or tracheal foreign body. The appropriate diet for patients with diaphragmatic hypoplasia: 1. Supply sufficient protein and iron The diet should include more lean meat, animal liver, tofu and soy milk. These foods are not only rich in high-quality protein and iron, but also do not have the disadvantage of increasing phlegm and fire, which is beneficial to enhance the patient’s physical fitness, improve the resistance to disease and promote the repair of damaged tissues. 2, eat more food containing vitamin A, C and calcium Food containing vitamin A such as pig liver, egg yolk, cod liver oil, carrots, pumpkin, apricots, etc.; has the effect of moistening the lungs and protecting the trachea, food containing vitamin C has the function of anti-inflammatory, anti-cancer, anti-cold, such as dates, grapefruit, tomatoes, green pepper, etc.; food containing calcium can enhance the trachea anti-allergic ability, such as pork bones, green vegetables, tofu, sesame paste, etc.. It should be noted that dairy products can thicken the phlegm and make it difficult to discharge, thus aggravating the infection, so the intake of milk and its products should be limited. 3.Increase liquid intake Drink a lot of water to help dilute the phlegm and keep the airway open; drink at least 2000ml of water per day (which includes the water in food). 4.Eating edible mushrooms regularly can regulate immune function Such as shiitake mushroom and mushroom containing shiitake polysaccharide and mushroom polysaccharide, which can enhance human resistance and reduce the attack of bronchopulmonary emphysema. Dietary contraindications for patients with diaphragmatic hypoplasia: 1. Avoid stimulating foods Avoid eating spicy and irritating foods such as chili, onion, garlic, wine, etc., because stimulating the tracheal mucosa can aggravate cough, asthma, palpitations and other symptoms and induce emphysema, so when avoid eating. 2, avoid eating fishy and greasy seafood non-steaming practice to make the fish, due to the amount of oil used is too much, easy to cause fire. In addition, people with allergies and people with high blood uric acid (such as gout patients) should also eat less oily yellowtail, scallops, shrimp, crab and fatty meat, etc. to avoid fire and phlegm. 3, avoid eating gas-producing foods such as sweet potatoes, leeks, etc., because it is not conducive to the lung qi Xuanjiang, should eat more alkaline food. 4, prohibit smoking because smoking is one of the bane of the development of bronchitis, emphysema bronchitis is extremely unfavorable, should be absolutely prohibited.