Which type of skin cancer is more serious and characterized by scaly red papules?

Squamous cell carcinoma is indeed a more serious type of skin cancer that is typically characterized by scaly red papules. This form of cancer arises from the squamous cells, which make up the outer layer of the skin. It often appears as a thickened, scaly patch that may bleed or crust over. These lesions can develop in areas that receive significant sun exposure, such as the face, ears, and neck, making early detection and treatment crucial to prevent the cancer from spreading.

Basal cell carcinoma, while also a form of skin cancer, is generally considered less aggressive and has a lower risk of metastasis compared to squamous cell carcinoma. It tends to present as pearly nodules or sores that do not heal rather than the scaly papules described in the question. Malignant melanoma is another serious type of skin cancer but is usually identified by changes in moles or the appearance of unusual pigmented lesions rather than scaly red papules. Verrucae, or warts, are caused by viral infections and are not classified as cancers. Understanding the characteristics of each type of skin lesion is crucial for nail technicians and other professionals in the beauty field to ensure they can identify potential skin issues appropriately.