Overexposure to ultraviolet (UV) radiation causes different skin conditions including sunspots and skin cancer.
Sunspots (actinic keratosis) are red scaly or crusty spots, more common in fair-skinned people who are frequently in the sun.
They are considered potentially precancerous, and if left untreated, they may turn into a type of cancer called SCC (squamous cell carcinoma).
BCC and SCC usually look like red spots, which can bleed, become itchy or tender.