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Bronchiectasis is a long-term condition where the airways of the lungs become abnormally widened, leading to a build-up of excess mucus that can make the lungs more vulnerable to infection.
The most common symptoms of bronchiectasis include:
The severity of symptoms can vary widely. Some people have only a few symptoms that don't appear often, while others have wide-ranging daily symptoms.
The symptoms tend to get worse if you develop an infection in your lungs.
Read more about the symptoms of bronchiectasis.
You should see your GP if you develop a persistent cough. While this may not be caused by bronchiectasis, it requires further investigation.
If your GP suspects you may have bronchiectasis, they'll refer you to a specialist in treating lung conditions (a respiratory consultant) for further tests.
Read more about diagnosing bronchiectasis.
The lungs are full of tiny branching airways, known as bronchi. Oxygen travels through these airways, ends up in tiny sacs called alveoli, and from there is absorbed into the bloodstream.
The inside walls of the bronchi are coated with sticky mucus, which protects against damage from particles moving down into the lungs.
In bronchiectasis, one or more of the bronchi are abnormally widened. This means more mucus than usual gathers there, which makes the bronchi more vulnerable to infection. If an infection does develop, the bronchi may be damaged again, so even more mucus gathers in them, and the risk of infection increases further.
Over time, this cycle can cause gradually worsening damage to the lungs.
Bronchiectasis can develop if the tissue and muscles that surround the bronchi are damaged or destroyed.
There are many reasons why this may happen. The three most common causes in the UK are:
However, in many cases of bronchiectasis, no obvious cause for the condition can be found (known as idiopathic bronchiectasis).
Read more about the causes of bronchiectasis.
Bronchiectasis is thought to be uncommon. It's estimated that around 1 in every 1,000 adults in the UK have the condition.
It can affect anyone at any age, but symptoms don't usually develop until middle age.
Over 12,000 people were admitted to hospital in England during 2013-14 with bronchiectasis. The majority of these people were over 60 years old.
The damage caused to the lungs by bronchiectasis is permanent, but treatment can help relieve your symptoms and stop the damage getting worse.
The main treatments include:
Surgery is usually only considered for bronchiectasis in rare cases where other treatments haven't been effective, the damage to your bronchi is confined to a small area and you're in good general health.
Read more about the treatment of bronchiectasis.
Complications of bronchiectasis are rare, but they can be serious. One of the most serious complications is coughing up large amounts of blood, caused by one of the blood vessels in the lungs splitting. This problem can be life-threatening and may require emergency surgery to treat it.
Read more about the complications of bronchiectasis.
The outlook for people with bronchiectasis is highly variable and often depends on the underlying cause.
Living with bronchiectasis can be stressful and frustrating, but most people with the condition have a normal life expectancy. For people with very severe symptoms, however, bronchiectasis can be fatal if the lungs stop working properly.
Around 1,000 deaths reported in England and Wales each year are thought to be caused by bronchiectasis.
If you have bronchiectasis, your clinical team may pass information about you on to the National Congenital Anomaly and Rare Diseases Registration Service (NCARDRS).
This helps scientists look for better ways to prevent and treat this condition. You can opt out of the register at any time.