What should you know about hyperplastic actinic keratosis?

Actinic keratosis commonly feels like sandpaper and may look pink, red, tan, or brown. The hyperplastic form has more scale or thickness, sometimes forming a firm surface. It usually appears on sun-exposed sites such as the face, scalp, ears, forearms, or backs of the hands. It reflects sun-damaged skin, but a thick or persistent lesion can overlap in appearance with squamous cell carcinoma, so a visual label should not replace examination.

A dermatologist may inspect the lesion with magnification and decide whether a biopsy is appropriate. Do not scrape, freeze, or apply strong acids to an undiagnosed growth.

Book a dermatology review rather than waiting for a thick lesion to disappear. Treatment depends on its size, depth, number, site, and examination findings. Options may include cryotherapy, a prescribed field treatment such as imiquimod or topical 5-fluorouracil, or photodynamic therapy. Use protective clothing, shade, and regular broad-spectrum sunscreen on exposed skin. A skin cancer screening visit can also help identify other sun-related changes.

Seek prompt assessment if the area grows, becomes tender, bleeds, crusts repeatedly, develops an ulcer, or becomes noticeably thicker. Arrange review for any rough patch that persists or returns after treatment. Urgency is based on these warning changes, not on the fact that the lesion is a sun spot.

Does this lesion need a biopsy? Which treatment suits its thickness and location? How should I care for the area after treatment? Do I have other sun-damaged areas to monitor? What follow-up schedule is appropriate if testing shows cancer?