Skin Cancer: Causes, Signs, and What You Need to Know

When your skin gets damaged by too much UV radiation, ultraviolet light from the sun or tanning beds that breaks down skin cell DNA. Also known as sun damage, it's the main reason most skin cancers develop. This isn’t just a sunburn—it’s a slow, silent change in your skin’s cells that can turn dangerous. Melanoma, the deadliest form of skin cancer, starts in pigment-producing cells and can spread fast if missed. But not all skin cancers are the same. Basal cell carcinoma, the most common type, grows slowly and rarely spreads. And squamous cell carcinoma, another common type, often shows up as a scaly red patch or open sore. These three make up over 95% of all skin cancer cases. What they all share? They’re usually visible. And they’re often preventable.

Most people don’t realize how much their daily habits matter. A single bad sunburn before age 18 can double your risk of melanoma later. Even daily exposure—walking to your car, sitting by a window—adds up. That’s why sunscreen isn’t optional. It’s not just for beach days. It’s for every day. And it’s not just about SPF. Broad-spectrum protection, reapplied every two hours, matters. But sunscreen alone won’t stop everything. You also need to know what to look for. The ABCDE rule: Asymmetry, Border irregularity, Color changes, Diameter bigger than a pencil eraser, and Evolving size or shape. If a mole looks different, changes fast, or won’t heal, get it checked. A skin biopsy, a simple procedure where a tiny piece of skin is removed and tested. can confirm if it’s cancer. Early detection cuts death rates by over 90%. That’s not a guess. That’s data from the American Academy of Dermatology.

You don’t need to be a dermatologist to spot warning signs. You just need to know your skin. Check yourself monthly. Take photos of moles if you have a lot. Don’t ignore a spot that bleeds, itches, or doesn’t go away. And don’t wait for pain. Skin cancer often doesn’t hurt until it’s advanced. The truth? Most cases are caught by patients themselves—not doctors. The tools are simple: a mirror, good light, and five minutes. What you’ll find in the articles below are real, practical guides on how to recognize early signs, understand treatment options, and avoid the biggest mistakes people make. No fluff. No fearmongering. Just clear, honest info that helps you take control before it’s too late.