Seborrheic keratoses are very common skin growths that tend to develop with age. They are benign and not worrisome. These growths are commonly found on the head, neck, chest, or back, though they can appear anywhere on the body with the exception of the palms and soles. Seborrheic keratoses can be white, tan, brown, or black. They can be flat, scaly, waxy, and even wart-like in appearance. Though harmless, these lesions can be treated or removed if bothersome.