Actinic cheilitis on the top lip: what to know

It affects the lower lip more often, but it can occur on the top lip. A persistent rough, scaly, pale, red or cracked patch deserves examination rather than repeated self-treatment as ordinary dryness.

Repeated ultraviolet exposure can injure lip cells over time. The border between the lip and nearby skin may become blurred, and the surface can feel sandpapery, peel repeatedly, burn or remain tender. Appearance alone cannot reliably separate actinic cheilitis from irritation, allergy, infection or an early lip cancer.

A dermatologist examines the whole lip and surrounding sun-damaged skin. If an area is thickened, ulcerated, persistently crusted or otherwise suspicious, a small biopsy may be recommended to check the cells and guide treatment.

Arrange a dermatology appointment for a patch that does not settle. Until it is assessed, use a broad-spectrum lip sunscreen, reapply after eating or drinking, wear a brimmed hat and avoid picking scale or applying harsh exfoliants. Plain petroleum jelly can reduce cracking but does not treat altered cells.

Treatment depends on the examination and, when needed, biopsy findings. Options may target one defined spot or the wider damaged lip surface. They can include a prescribed topical medicine, photodynamic therapy, laser resurfacing or a procedure that removes abnormal tissue. Ask how healing, discomfort, lip care and follow-up differ for the proposed option.

Seek a prompt clinical review if the area forms a firm lump, develops a sore that will not heal, bleeds without clear injury, becomes increasingly painful, grows or changes noticeably. Also arrange assessment if you notice numbness or a lump in the neck. These changes do not establish a diagnosis, but they can require faster examination and biopsy.

You may wish to ask whether the upper-lip change looks typical of actinic cheilitis, whether a biopsy is appropriate, which treatment area is being targeted, what wound care will be needed and how the lip should be monitored afterward. Mention immune-suppressing medicines, previous skin cancers, tobacco use and treatments already tried because they may affect the assessment or plan.