Dysplasia of the ear is one of the symptoms of pediatric Diegeorg’s syndrome. Diegeorg’s syndrome (DGS) is associated with chromosome 22q11 defects and should be considered as the sum of the most severe group of clinical disorders, abbreviated by the first letter of each word as ldquo;CATCHrdquo; 22 syndrome, meaning Cardiac defect (Cardiac), Facial abnormality (Abnormal), Thymic hypoplasia (Thymic), Epiglottis malformation (Cleft) and Hypocalcemia due to 22q11 deletion. Thymic), epiglottis malformation (Cleft) and decreased blood calcium (Hypocalcemia). The following are the key points to prevent otogenesis imperfecta: 1. Pregnant women should avoid receiving radiation, use some chemical drugs with caution, get rubella vaccine, etc., and prevent viral infections as much as possible. Pregnant women should also be made to enhance nutrition and timely treatment of some chronic diseases. 2, prenatal diagnosis, to prevent the birth of children with diseases. 3. Keep the air circulating in the room and avoid crowded public places as much as possible to reduce the chance of respiratory infection. You should add clothes in time with the weather and pay attention to the prevention of colds. 4, in the diet is appropriate to eat high protein food; appropriate to eat high iron food is appropriate to eat high vitamin C food. Avoid eating active protein foods; avoid eating spicy and stimulating foods; avoid eating hot and dry foods.