What causes a bronchospasm?

What causes a bronchospasm?

Anytime your airways are irritated or swollen, it can cause bronchospasm. Asthma is the most common cause of bronchospasm, but there are several other things that can result in the condition, including:

• Bacterial, viral or fungal infections of the lungs or airways.
• Chronic obstructive pulmonary disease (COPD).
• Dust, pollen, pet dander and other allergens.
• Exercise (exercise-induced bronchospasm).
• Chemical fumes or other irritants (such as perfumes).
• Cold temperatures.
• Smoking or vaping.
• General anesthesia used in surgery.

Bronchospasm is a symptom of several different conditions. However, just because you have one of the conditions listed above, it doesn’t necessarily mean that you’ll develop bronchospasm.

In very rare instances, bronchodilators commonly used to treat bronchospasm can actually make the condition worse. This is called paradoxical bronchospasm. If this happens, you should stop using your bronchodilator immediately and seek alternative treatment.