Utah Esthetician State Board Practice Exam

Which of the following most commonly causes lesions in atopic dermatitis?

1. Environmental allergens

2. Bacterial infections

3. Viral infections

4. Dermatophyte infections

The correct answer is: Environmental allergens

Atopic dermatitis, commonly known as eczema, is a chronic inflammatory skin condition that is primarily influenced by an individual's genetic predisposition and environmental factors. The lesions associated with atopic dermatitis are most commonly triggered by environmental allergens, such as pollen, dust mites, or pet dander. These allergens can exacerbate the condition by causing increased inflammation and immune response, leading to the development of itchy, inflamed, and often broken skin. While bacterial, viral, and dermatophyte infections can occur as complications in individuals with atopic dermatitis, particularly due to the compromised skin barrier, they are not the primary cause of the lesions. Such infections typically arise as a result of the skin being scratched or irritated, highlighting the impact of allergens in the initial development of the condition. Therefore, understanding the role of environmental allergens is key to managing and treating atopic dermatitis effectively.