Skin cancer is a type of cancer that begins in the skin cells. It usually develops due to excessive exposure to ultraviolet (UV) radiation from the sun or tanning beds. There are three main types of skin cancer: basal cell carcinoma, squamous cell carcinoma, and melanoma. While basal and squamous cell cancers are more common and generally less dangerous, melanoma is more aggressive and can spread to other parts of the body. Early detection is crucial for effective treatment. Regularly checking your skin for unusual moles or changes can help catch skin cancer early. Protecting your skin by using sunscreen, wearing protective clothing, and avoiding tanning beds can significantly reduce your risk of developing skin cancer.