OMG yes I have just googled it & now I am scared:
Actinic keratosis (also called
solar keratosis,
senile keratosis, or
AK) is a
premalignant condition of thick, scaly, or crusty patches of skin. It is most common in fair-skinned people who are frequently exposed to the sun, because their
pigment isn't very protective. It usually is accompanied by
solar damage. Since some of these pre-cancers progress to
squamous cell carcinoma, they should be treated.
When skin is exposed to the sun constantly, thick, scaly, or crusty bumps appear. The scaly or crusty part of the bump is dry and rough. The growths start out as flat scaly areas, and later grow into a tough, wart-like area.
An
actinic keratosis site commonly ranges in between 2 to 6 millimeters, and can be dark or light, tan, pink, red, a combination of all these, or the same pigment of one's skin. It may appear on any
sun-exposed area, such as the face, ears, neck, scalp, chest, back of hands, forearms