Sun Damage & Precancerous Spots
Living in New Zealand means a lifetime of strong UV exposure. Over time, the sun can cause visible skin damage — dryness, pigmentation, and rough patches. Some of these spots, called actinic keratoses (AKs) or solar keratoses, are more than just cosmetic changes. They’re precancerous lesions that can develop into squamous cell carcinoma (SCC) if left untreated. Early diagnosis and treatment are important, and that’s where DermLab’s Dermatologists can help.
Treatment Options
At DermLab, treatment is tailored to the number, location, and type of lesions:
Cryotherapy (freezing with liquid nitrogen) — quick and effective for isolated lesions
Topical treatments (prescription creams) — treat multiple lesions across an area of sun-damaged skin
Surgical removal — for thicker or more suspicious lesions, with pathology confirmation Treatment not only removes existing precancerous spots but also reduces the risk of progression to skin cancer.
Signs of Precancerous Spots
Actinic keratoses often appear on sun-exposed areas such as the face, scalp, ears, arms, and hands. They may look or feel like:
Rough, dry, scaly patches
Flat or slightly raised spots, pink, red, or skin-coloured
Areas that burn, itch, or feel tender
Spots that don’t heal properly Not all rough patches are dangerous, but only a Dermatologist can confirm whether a spot is harmless or precancerous.
Frequently Asked Questions
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No — some sun spots are cosmetic only, but actinic keratoses are precancerous and need treatment. A Dermatologist can tell the difference.
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Not always, but there is a risk of progression to squamous cell carcinoma, so early treatment is important.
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Yes. Daily sun protection (SPF, protective clothing, hats) and regular Dermatologist skin checks reduce your risk.
Request a Consultation
We know skin, and want you to be comfortable in yours. Let’s discuss your concerns and how to reclaim health and confidence.