If a person has seborrheic keratosis, is common to develop several growths over the course of their life. They are most commonly found in middle aged to older people. Although seborrheic keratoses can sometimes appear similar to other benign growths like moles, warts, or actinic keratoses, upon close inspection, they differ in the brown waxy surface appearance.
As seborrheic keratoses are not harmful, they often do not require treatment. They may be removed for cosmetic reasons, if they become irritated by friction or if they reveal any suspicious features. After a seborrheic keratosis is removed, it generally does not return, but a new lesion may occur elsewhere.