What are two common causes of wheezing in children?

Wheezing in children is often associated with bronchial constriction and inflammation, which makes two of the most common causes asthma and bronchiolitis.

Asthma is a chronic condition that causes intermittent wheezing due to inflammation and narrowing of the airways, often triggered by allergens, respiratory infections, or physical activity. The wheezing is a result of airflow obstruction, which can lead to difficulty breathing and requires appropriate management and intervention.

Bronchiolitis, typically caused by viral infections, primarily affects infants and young children under the age of two. The most common cause of bronchiolitis is the respiratory syncytial virus (RSV). The inflammation and mucus production in the small airways lead to wheezing. Recognizing bronchiolitis is crucial, as it often manifests with wheezing, and understanding this condition helps caregivers manage symptoms effectively.

In contrast, while conditions like croup and pneumonia can lead to respiratory distress, they are characterized by different clinical features and generally do not emphasize wheezing as a primary symptom. The other choices address conditions that, while relevant to respiratory issues, do not align as directly with the specific symptom of wheezing in the pediatric population.