Bronchopulmonary dysplasia (BPD) is abnormal development of the lungs in infants. It is considered a chronic lung disease. BPD can make it difficult for the infant to breathe. The condition usually develops in the first four weeks after birth.

BPD occurs most often in infants that were born early with immature lungs. Most babies who get BPD recover. However, this is a serious condition that needs care from your doctor.

Bronchopulmonary Dysplasia
© 2011 Nucleus Medical Media, Inc.

The exact cause of BPD is unknown. It is most often associated with complication of early lung disease or their treatments. These conditions or treatments can cause irritation and swelling of lungs and airways. This can lead to BPD.