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Asthmatic bronchiole and normal bronchiole

Asthma is a disease in which inflammation of the airways causes airflow into and out of the lungs to be restricted. When an asthma attack occurs, mucus production is increased, muscles of the bronchial tree become tight, and the lining of the air passages swells, reducing airflow and producing the characteristic wheezing sound.

Table of Contents

Definition Alternative Names Causes, incidence, and risk factors Symptoms Signs and tests Treatment Support Groups Expectations (prognosis) Complications Calling your health care provider Prevention References

Related Learning
Centers

·As a Disease/Condition

Asthma

·As a Complication

Allergies

Bronchiolitis

Drug Allergy

·As a Risk Factor

Allergic Bronchopulmonary Aspergillosis

Breathing Too Fast (Tachypnea)

Heartburn

Sinusitis

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