Catching skin cancer early can be achieved through quick monthly self-exams. Individuals should focus on the ABCDE rule to identify suspicious spots. Asymmetry refers to one half of a mole not matching the other. Irregular or blurry borders, rather than smooth edges, should be noted. Multiple colors within a single spot are also a concern. A diameter larger than a pencil eraser is another indicator. Most importantly, any spot that is evolving or changing over time warrants attention. If any suspicious signs are observed, it is recommended to book a professional skin check immediately.