Seborrheic Keratoses

Seborrheic keratosis are dark skin growths that appear in adulthood. Although they may be large and grow quickly, they are benign. They are not caused by sun damage so they may be typically found on areas both covered and uncovered by clothing. Seborrheic keratoses tend to run in families. Initially, they appear as slightly raised, light brown spots and evolve into darker, thicker lesions with rough, warty surfaces.