Seborrheic keratoses are dark skin growths that appear in adulthood. Although they may be large and grow quickly, they are benign.
Seborrheic keratoses are generally harmless, and there aren’t many treatments beyond removing them. Some people choose to have them removed if the growths become unsightly, itch, or become irritated from rubbing against clothing. Removal methods include cryotherapy, shave biopsy, laser surgery, and curettage and cautery.
Because of their appearance, seborrheic keratoses can be confused with other skin growths, such as warts, moles, and the more worrisome actinic keratoses (AKs) and melanoma. See your doctor if you have concerns about such growths on your skin.
Images courtesy of Gerald Goldberg, M.D.