Bronchopulmonary dysplasia (BPD) is a lung condition that occurs in infants, especially in premature infants. BPD is characterized by abnormal lung development and inflammation and scarring in the lungs. It is one of the most common lung diseases in children, with 5,000 to 10,000 new cases each year in the United States.
The exact cause of BPD is still being studied. Researchers do know that the condition develops from irritation or inflammation in the lungs. Additionally, some research suggests that the genes you are born with play a role in BPD.