How many people have bronchiectasis?

Quick Fact

There are many causes of bronchiectasis, but about 40% of cases the cause is unknown. This is called “idiopathic bronchiectasis.”
Source: American Lung Association

Prevalence estimates from several studies taken together suggest up to 522,000 patients have bronchiectasis with 70,000 adults newly diagnosed each year. The use of HRCT (High Resolution Cat Scan) has enabled more accurate diagnosis, but experts believe bronchiectasis remains underdiagnosed.

Bronchiectasis affects individuals from childhood to old age and affects more women than men.