Actinic keratosis (AK) is a skin condition caused by sun exposure. It is characterized by thick, scaly patches that can range in color from pink to flesh-colored to brown. AK is a precancerous condition, and while it’s not cancerous, it can turn into squamous cell carcinoma (SCC) in some cases. The exact duration of AK is hard to determine as it can vary from person to person, and is also affected by the severity of the AK and the person's individual skin type.
In general, most AKs can last anywhere from six to 24 months, while some may last longer. It is important to note that AK can recur even after treatment as the underlying cause of the condition—excessive sun exposure—still exists.
The best way to prevent or reduce the duration of AK is to protect the skin from excessive sun exposure. This includes wearing protective clothing such as hats, long-sleeved shirts, and long pants, as well as using sunscreen with an SPF of 30 or higher. Additionally, regular skin self-exams can help detect AK early, and prompt treatment can help reduce the length of time it takes for AK to resolve.
If AK is left untreated, it can increase the risk of developing SCC. Therefore, it is important to have any suspicious spots checked by a doctor to determine if they are indeed AK or something else. If they are AK, the doctor may recommend a treatment plan to reduce the duration of the condition. Treatments can range from topical medications to cryotherapy, which involves freezing the affected area.
In conclusion, the duration of actinic keratosis can vary from person to person. Generally, it can last up to two years, but can recur if the underlying cause—excessive sun exposure—is not addressed. The best way to reduce the duration of AK is to protect the skin from the sun, and seek prompt treatment for any suspicious spots.