Nonmelanoma Skin Cancer: Causes, Treatments, and What You Need to Know

When we talk about nonmelanoma skin cancer, a group of common skin cancers that rarely spread beyond the skin, including basal cell and squamous cell carcinomas. Also known as keratinocyte carcinoma, it accounts for over 90% of all skin cancer cases in the U.S. Unlike melanoma, it doesn’t usually become life-threatening—but it can cause serious damage if ignored. Left untreated, it can grow into nerves, bones, or surrounding tissue, especially on the face, ears, or scalp.

Two main types make up most cases: basal cell carcinoma, the most common form, often appearing as a pearly bump or a sore that won’t heal, and squamous cell carcinoma, a rough, scaly patch or open sore that may bleed or crust over. Both are strongly linked to long-term UV exposure from the sun or tanning beds. People on long-term immunosuppressants—like those after organ transplants—have a higher risk. Some medications, including certain oral antibiotics or retinoids, can increase sun sensitivity, making skin more vulnerable. Even if you’re not taking these drugs, knowing your skin’s reaction to light matters.

Prevention isn’t just about sunscreen. It’s about daily habits: checking your skin monthly, wearing wide-brimmed hats, avoiding peak sun hours, and getting annual skin checks if you’ve had previous lesions. Early detection is key. Many people mistake a persistent pimple or scab for something harmless, but if it doesn’t go away in 4–6 weeks, see a dermatologist. Treatments range from simple topical creams like imiquimod for small lesions, to surgical removal, cryotherapy, or radiation for larger or deeper cases. Some newer topical treatments are now used off-label for precancerous spots, reducing the need for surgery.

The posts here cover real-world issues tied to nonmelanoma skin cancer—not just the diagnosis, but how it connects to your broader health. You’ll find advice on managing steroid-induced skin changes that mimic cancer symptoms, how certain medications affect your skin’s vulnerability, and how to spot dangerous changes before they escalate. There’s also guidance on avoiding online pharmacy scams selling fake skin creams, understanding how drug interactions can worsen sun sensitivity, and what to ask your pharmacist when you’re prescribed a new medication that might affect your skin. Whether you’re worried about a spot on your nose, managing side effects from long-term drugs, or just trying to stay safe in the sun, this collection gives you clear, practical steps—not guesswork.