What type of asthma is most common in childhood?

• A. Intrinsic asthma
• B. Extrinsic asthma
• C. Exercise-induced asthma
• D. Drug-induced asthma

Answer: (B)

Allergic asthma is the form most commonly seen in children. It starts from an atopic tendency, where the immune system overreacts to environmental allergens such as pollen, dust mites, animal dander, and mold. This IgE-mediated response causes airway inflammation and hyperresponsiveness, leading to wheeze, coughing, and shortness of breath when the child is exposed to triggers. Because many kids with asthma also have other atopic conditions like eczema or allergic rhinitis, this pattern fits the pediatric population well. The tendency to begin in childhood and to flare with allergen exposure makes it the typical presentation, and management often focuses on avoiding known triggers and using anti-inflammatory therapies to control the underlying airway inflammation.

Intrinsic asthma is non-allergic and often occurs later in life, without identifiable environmental triggers. Exercise-induced asthma is triggered by physical activity and can occur in children, but it represents a specific trigger pattern rather than the most common form. Drug-induced asthma arises from sensitivities to certain medications and is relatively uncommon in children.