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Causes of Bronchiectasis

Learn about the various causes of bronchiectasis, from infections to genetic disorders, and why understanding them is crucial for managing and preventing this serious lung condition.

  • 19 Feb 2024
  • 2 min read

Bronchiectasis is a severe disease that causes the airways of the lungs to become unusually wide and causes an accumulation of mucus. This situation can leave your lungs open to all sorts of infections. With many potential triggers, it’s important to know what is behind this condition. In this article, we’ll explore the main causes of bronchiectasis that’ll help you understand this condition a bit better.

What are the Causes of Bronchiectasis?

Bronchiectasis is usually caused by damage to the lungs, either through an infection or a genetic disorder. Listed below are the main causes of bronchiectasis: 

  • Mycobacterial Infections: Conditions like MAC infections and tuberculosis can trigger bronchiectasis.


  • Cystic Fibrosis: This genetic condition produces thick mucus that damages the lungs.


  • Autoimmune or Inflammatory Disorders: Diseases such as rheumatoid arthritis (RA), inflammatory bowel disease (IBD), lupus (SLE), and Sjögren's syndrome can cause lung inflammation.


  • Airway Obstructions: Foreign bodies, tumours, or enlarged lymph nodes can block airways and lead to lung damage.


  • Conditions Affecting Immunity: Diseases like HIV and hypogammaglobulinemia increase infections.


  • Primary Ciliary Dyskinesia: Affects the cilia in the respiratory tract and hinders mucus clearance.


  • Post-Organ Transplant Effects: Organ transplant medications can suppress the immune system and increase infections.


  • Allergic Bronchopulmonary Aspergillosis (ABPA): This is an allergic reaction to a type of fungus that can lead to lung damage.


  • Radiation-Induced Fibrosis: Lung scarring due to radiation therapy can cause the development of bronchiectasis.


  • Alpha-1 Antitrypsin Deficiency: This disorder causes lung damage and increases the risk of developing bronchiectasis.


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Understanding the causes of bronchiectasis is crucial in managing and preventing it. It is a bit like piecing together a puzzle – the more we know, the better we can respond. It is always best to consult a healthcare professional if you suspect you or someone you know might be at risk. After all, they are the experts who can provide tailored advice and support. Stay informed, stay healthy, and keep those lungs happy! Remember, having comprehensive health insurance coverage can provide you with peace of mind in managing conditions like bronchiectasis.

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