Pronounced: Ak-TIN-ik care-a-TOE-sis
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Actinic keratosis (AK) is abnormal growth of the skin. It results in a rough, scaly, or crusted patch of skin. AK tends to occur on sun-damaged skin.
AK is caused by long term excessive sun exposure. Ultraviolet rays from sunlight can cause skin damage. Over time, this damage can cause abnormal growth of the skin such as AK.
Factors that increase your chances of getting AK include:
- Fair skin color
- Easy sunburning
- Extra exposure to sun
- Occupations or pastimes in sunlight such as farmer, lifeguard, or athlete in outdoor sports