Laser Technician IBEC Board Exam 2026 - Free International Board of Electrologist Certification Practice Questions.

Basal cell carcinoma is considered the most common form of skin cancer due to its prevalence among the various types of skin cancers. It originates in the basal cells, which are located in the lower part of the epidermis, and is primarily caused by prolonged exposure to ultraviolet (UV) radiation from the sun or artificial sources. This type of cancer is characterized by slow growth and typically appears as a small, shiny bump or a sore that doesn’t heal.

Its commonality can also be attributed to the factors influencing skin cancer incidence, such as fair skin, sun exposure, and external environmental factors in certain populations. While melanoma and squamous cell carcinoma are also significant types of skin cancer, they are less common in comparison to basal cell carcinoma. Melanoma, although more aggressive and serious, occurs less frequently but has a higher mortality rate. Squamous cell carcinoma, while more common than melanoma, does not surpass the prevalence of basal cell carcinoma. Lentigo maligna is a less common form, primarily seen in older adults, further supporting the distinction in prevalence. Understanding these factors helps in recognizing why basal cell carcinoma stands out as the most frequently diagnosed type of skin cancer.