Utah Master Esthetician Practice Exam

What is the most common type of skin cancer?

1. Squamous cell carcinoma

2. Basal cell carcinoma

3. Melanoma

4. Keratoacanthoma

The correct answer is: Basal cell carcinoma

Basal cell carcinoma is recognized as the most prevalent type of skin cancer. This form of cancer originates in the basal cells, which are located in the epidermis (the outer layer of the skin). Due to its slow growth and tendency to remain localized, basal cell carcinoma rarely metastasizes, making it less likely to spread to other areas of the body compared to other forms of skin cancer. It is commonly associated with prolonged sun exposure, particularly in fair-skinned individuals, which underscores the importance of sun protection to reduce the risk of developing this cancer. In contrast, while squamous cell carcinoma and melanoma are significant forms of skin cancer, they occur less frequently than basal cell carcinoma. Keratoacanthoma, while sometimes considered a variant of squamous cell carcinoma, is also less common compared to basal cell carcinomas. Understanding the prevalence of basal cell carcinoma helps highlight the necessity for regular skin checks and sun safety practices as part of comprehensive skin health management.