Bronchopulmonary dysplasia (BPD) is a breathing disorder where an infant’s lungs become irritated and do not develop normally. It occurs most often in low-weight infants born more than two months early.Bronchopulmonary dysplasia is also known as chronic lung disease of premature babies,Chronic lung disease of infancy,Neonatal chronic lung disease,Respiratory insufficiency.Bronchopulmonary dysplasia can be mild, moderate or severe. Many infants fully recover from this disorder. Others may have breathing difficulties during the first two years of life and even into the teen and adult years. Babies with this disorder are often in the hospital and need a lot of care.Bronchopulmonary dysplasia is often seen in infants with respiratory distress syndrome (RDS). This breathing disorder is common in babies, born too early, since their lungs have not fully grown.