Bronchitis

Bronchitis is the inflammation of the bronchi, the air ways that
connect the trachea (wind pipe) to the lungs, resulting in cough that may
produce considerable quantities of sputum (Phlegm). Two forms, of the
disease are recognized as acute bronchitis (sudden onset and short duration)
and chronic bronchitis (Persistent over a long period and recurring over
several years). Both are more common in smokers and in areas with high
atmospheric pollution.

Acute bronchitis :

It is caused by viral infection or by the effect of air
pollutants. Bacterial infection may cause acute bronchitis. Attacks occur more
often in winter. Smokers, babies, the elderly and people with lung diseases
are particularly susceptible.

Chronic Bronchitis :

It is a form of bronchitis in which sputum is coughed up on most days
for atleast three consecutive months. The disease results in narrowing and
obstruction of the air – ways in the lungs. It often coexists with another form
of lung disease, emphysema (widening of alveoli). Chronic bronchitis and
emphysema together are called chronic obstructive lung disease (COLD) or
chronic obstructive airways disease.

Causes :

Pollution and smoking are the causes of chronic bronchitis. It
stimulates the production of mucus in the lining of the bronchi.

Bronchitis

Acute bronchitis :

Chronic Bronchitis :

Causes :

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