What is the most common type of skin cancer?

Basal cell carcinoma is the most common type of skin cancer, primarily due to its origin in the basal layer of the epidermis where the majority of skin cell growth occurs. This type of cancer arises from prolonged exposure to ultraviolet (UV) radiation from the sun or tanning beds, leading to DNA damage in the basal cells. Most cases are slow-growing and typically do not metastasize, making them usually less aggressive compared to other forms of skin cancer.

The prevalence of basal cell carcinoma reflects its significant association with sun exposure, especially in individuals with fair skin. It is essential to recognize that while other skin cancers, like melanoma, carry higher risks for metastasis and are more deadly, they are less common overall. Understanding the distinction between these types emphasizes the importance of regular skin assessments and protection against UV exposure to reduce the risk of developing common skin cancers.