Asthma
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Explore overview, symptoms, causes, treatment, diagnosis, prevention, and FAQ articles for this condition.
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What is Asthma
Asthma is a chronic inflammatory disorder of the airways in which the bronchial tubes become unusually sensitive and can narrow repeatedly in response to triggers. It involves the lower respiratory system, especially the bronchi and bronchioles, where swelling, excess mucus, and…
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Symptoms of Asthma
The symptoms of asthma are typically wheezing, shortness of breath, chest tightness, and coughing. These symptoms arise because the airways become inflamed, overly sensitive, and narrowed, which makes it harder for air to move in and out of the lungs. In…
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Causes of Asthma
Asthma develops when the airways become abnormally sensitive, inflamed, and prone to narrowing in response to triggers that would not affect most people as strongly. Its causes are not usually a single event but a combination of biological susceptibility, immune system…
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Diagnosis of Asthma
Asthma is usually identified through a combination of symptoms, medical history, physical examination, and tests that show variable narrowing of the airways. The condition is not diagnosed by a single sign or one definitive laboratory marker in most cases. Instead, clinicians…
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Treatment for Asthma
Asthma is treated with medications that reduce airway inflammation, relax constricted airway smooth muscle, and prevent exposure to triggers that provoke airway narrowing. The main treatments are inhaled corticosteroids, bronchodilators, combination inhalers, and in selected cases biologic therapies or procedures such…
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Prevention of Asthma
Asthma cannot be prevented with absolute certainty in every person, because its development is influenced by a mixture of inherited susceptibility and environmental exposures that begin early in life and continue over time. For many individuals, the condition arises from a…
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FAQ about Asthma
This FAQ explains the most common questions people ask about asthma, including what it is, why it happens, how it is diagnosed, and how it is treated. It also covers long-term outlook, ways to reduce risk, and several less commonly asked…