Bronchitis

Bronchitis is an infection of the main airways of the lungs (bronchi), which causes them to become inflamed.

It is common in winter and often develops following a cold, sore throat or flu.

The main symptom of bronchitis is a cough, which may bring up yellow-grey mucus. Bronchitis may also cause a sore throat, wheezing and a blocked nose (see Symptoms of bronchitis for more information).

Who is affected?

Anyone can be affected by bronchitis, although smokers and people who work with substances that can irritate the lungs, such as grains or textiles, are more likely to get it.

Acute and chronic bronchitis

Bronchitis is usually a mild and self-limiting condition. Self-limiting means that it clears up by itself, usually within a couple of weeks. This is known as acute bronchitis as it lasts for only a short period of time.

However, in some cases, the damage caused by the infection of the bronchi can become permanent, causing the condition to be more severe and long lasting. If the infection lasts longer than three months, it is known as chronic bronchitis.

Outlook

Most cases of bronchitis can be treated easily at home and do not usually require further medication. However, people with severe or chronic bronchitis, or those with an underlying condition such as asthma, may need treatment from a GP.