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Actinic keratosis (AK) is a common skin ailment that causes rough, scaly areas to form on the skin after being in the sun for a long time. These lesions are thought to be pre-cancerous since they could turn into squamous cell carcinoma if they aren't treated right away. Actinic keratosis usually shows up on parts of the body that are exposed to the sun, like the face, head, ears, forearms, and hands. People with light skin, jobs that keep them outside, or a history of sunburns are more likely to get it.

The patches can be different sizes, shapes, and colours, from pink to brown or skin tone. They might feel rough like sandpaper and occasionally make you itch or hurt. Using sunscreen, wearing protective clothing, and staying out of the sun for lengthy periods of time are all important ways to avoid becoming burnt.

Diagnosis is mostly clinical; however, in ambiguous instances, a skin biopsy may be conducted. Depending on how bad the lesions are and how many there are, treatment options include cryotherapy (freezing), topical medicines, laser therapy, or photodynamic therapy.

Actinic keratosis is a symptom of long-term sun damage. Early detection and treatment of skin cancer reduces its progression and promotes skin health. People who are at risk should get their skin checked regularly.