Actinic Keratosis (AK): Understanding the Warning Signs of Sun-Damaged Skin
Our skin is the body’s largest organ and serves as the first line of defense against the environment. Every day, it is exposed to sunlight, pollution and other external factors. While some sun exposure is beneficial for vitamin D production, years of unprotected exposure to ultraviolet (UV) radiation can lead to skin damage and increase the risk of developing certain skin conditions, including Actinic Keratosis (AK).
Actinic Keratosis (AK), also known as solar keratosis, is a common precancerous skin condition caused by cumulative exposure to ultraviolet (UV) radiation from the sun or artificial sources such as tanning beds.
AK appears as rough, scaly or crusty patches on the skin and is considered a warning sign of sun damage. Although these lesions are not yet cancerous, they have the potential to develop into a type of skin cancer known as squamous cell carcinoma if left untreated.
What Causes Actinic Keratosis?
The primary cause of Actinic Keratosis is long-term exposure to ultraviolet (UV) radiation. Unlike a sunburn that occurs after a single day in the sun, AK develops as a result of cumulative sun damage over many years.
Factors that increase the risk of developing AK include:
- Frequent or prolonged sun exposure
- History of sunburns
- Outdoor occupations or recreational activities
- Fair skin, light-colored eyes or blonde/red hair
- Increasing age
- Weakened immune system
- Use of tanning beds
- Living in sunny climates
The effects of UV damage accumulate over time, which is why AK is more commonly seen in middle-aged and older adults.
What Does Actinic Keratosis Look Like?
Actinic Keratosis can vary in appearance and may sometimes be mistaken for dry skin or a harmless age-related skin change.
Common characteristics include:
- Rough, dry or scaly patches
- Pink, red, tan or brown lesions
- Crusty or thickened skin
- Areas that feel like sandpaper
- Itching, burning or tenderness
- Persistent spots that do not heal
Many patients notice the texture of an AK lesion before they can clearly see it. The affected area may feel rough when touched and remain present despite the use of moisturizers.
This is your reminder to protect your skin every day! Don’t forget to check all exposed skin.
If you notice a patch that doesn’t heal or keeps coming back, it’s worth getting checked.
We are also independent prescribers able to prescribe any medication from the BNF relevant to the lower limb, foot and ankle.
Are you suffering from any foot, skin or nail condition? At The Chelsea Clinic, we can help. One of our podiatrist can assist and then recommend what treatments are best to get you back on track. Podiatrist South Kensington
Schedule an appointment here or you may call us at +44 (0) 207 101 4000.
We hope you have a feetastic day!
-The Chelsea Clinic and Team
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