Varicose Veins Masthead

Seborrheic Keratosis


Seborrheic Keratosis (SK's) are common, non-cancerous (benign) lesions that grow on the outer layer of the skin and can develop on any part of the body. They tend to start appearing in adulthood and usually increase in number over time. SK's are not related to sun exposure, but they tend to run in families. SK's are usually rough, scaly, crusty, raised bumps or warty in appearance, and can be light to tan or dark brown. They can also increase in size. SK's seem to be "stuck on" the skin and many people scratch them off accidentally and harmlessly. SK's cannot be prevented from appearing nor do they need to be treated. SK's can be frozen off with liquid nitrogen, shaved off with a blade, or scraped off with a curette if they are itchy, bleeding, or painful. Since these are superficial lesions their removal causes minimal scarring. Your dermatologist can help you decide the best option for you.