Which type of skin cancer is known to be the second most deadly and is caused by cumulative sun exposure?

Squamous Cell Carcinoma (SCC) is recognized as the second most deadly form of skin cancer, primarily caused by cumulative sun exposure over time. This type of cancer originates in the squamous cells, which are located in the outer layer of the skin. When squamous cells undergo malignant changes, they can lead to SCC, especially in areas of the skin that have been repeatedly exposed to sunlight, such as the face, ears, neck, and hands.

The danger of squamous cell carcinoma lies in its potential to metastasize, or spread, to other parts of the body if not treated early. Although it can often be treated successfully when detected early, its ability to become aggressive makes awareness of the associated risks, particularly regarding sun exposure, essential. Understanding SCC's link to long-term sun damage highlights the importance of sun protection measures in preventing skin cancers.