Skin cancer is the most common cancer worldwide. The three main types are basal cell carcinoma (rarely spreads), squamous cell carcinoma (can spread), and melanoma (most dangerous).
Primary risk factor is UV radiation from sunlight and tanning beds. Use the ABCDE rule for melanoma: Asymmetry, Border irregularity, Color variation, Diameter over 6mm, Evolving lesion.
Prevention: broad-spectrum SPF 30+ sunscreen daily, protective clothing, avoid peak UV hours (10am-4pm), no tanning beds, monthly self-skin exams.
Treatment includes excision, Mohs surgery, immunotherapy, and targeted therapy. When detected early, skin cancers have excellent cure rates.
Possible Causes
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