Ever notice rough or waxy bumps on your skin that feel like you could pick them off? Seborrheic keratoses (SKs) are common, benign growths that can look like waxy, stuck-on bumps of varying colors. The exact cause is unknown, but genetics and age likely play a role. They typically start in the 30s or 40s; by the age of 60, over 90% of adults have at least one SK, and some people have hundreds. Most SKs don’t cause symptoms, but some can become irritated or itchy, particularly if traumatized. Whi