Actinic keratosis is a small, rough, raised area found on skin that has been exposed to the sun over a long period of time.
Over many years, some actinic keratoses may develop into a type of
Solar keratosis; Sun-induced skin changes - keratosis; Keratosis - actinic (solar)
Actinic keratosis is caused by sun exposure, but it takes many years or decades to develop.
Risk factors for actinic keratosis include: