Ultraviolet UVB light (315 – 280 nm) from sun/tanning beds damages DNA
High risk in fair skin, blue eyes, and red-haired people,
High risk history of multiple atypical nevi or dysplastic nevi
Melanoma
Basal cell carcinoma
Kaposi's sarcoma
Squamous cell carcinoma
Seborrheic keratosis
Chondrosarcoma
Osteosarcoma
Nevus