Why eyelid cancers happen
The skin of the eyelid is thin and exposed to a lifetime of sunlight, which makes it one of the more common sites on the face for skin cancer. The great majority of eyelid cancers are slow growing and highly treatable when they are found early, and the most common type rarely spreads elsewhere in the body. The purpose of this page is not to alarm but to help you recognise the small number of changes that are worth acting on.
Most lumps and marks on the eyelid are entirely benign. What matters is knowing the features that separate an ordinary blemish from one that deserves a professional look.
The warning signs
No single feature is proof of anything, but the following changes should prompt an assessment rather than waiting and watching for months.
- A lump that grows steadily over weeks and months
- One that bleeds, crusts, or ulcerates and does not heal
- Distortion of the lid margin, or a notch in the edge of the lid
- Loss of eyelashes in one small area
- A firm, flat, or pearly patch that is slowly changing
- A stye or chalazion in the same spot that keeps coming back or never fully settles
That last point matters: a recurrent or persistent lump that has been treated as a stye or chalazion but never quite resolves is occasionally something that needs a closer look, which is a theme we return to below.
The main types of eyelid cancer
There are four main types, and each has its own dedicated guide. By far the most common is basal cell carcinoma, which is slow growing and very rarely spreads, though it does need treating to stop it enlarging locally. Squamous cell carcinoma is less common and can behave more aggressively. Sebaceous gland carcinoma is rare but important, because it can masquerade as a recurrent chalazion or stubborn blepharitis and so be missed. Melanoma of the eyelid is rare and relates to changes in a pigmented spot.
You do not need to work out which type you have, that is what an examination is for. Knowing they exist, and that they look different from one another, is enough to take a persistent change seriously.
Diagnosis and treatment
A suspicious lesion is examined and usually confirmed with a small biopsy. Treatment is most often surgical removal, frequently with careful checking of the margins to make sure the whole lesion has been taken. Because the eyelid is a delicate and functionally important structure, the gap left behind then needs careful reconstruction to restore both how the lid works and how it looks. This reconstructive eyelid surgery is a core part of an oculoplastic surgeon's work.
The reassuring reality is that when eyelid cancers are caught early, cure rates are high and reconstruction results are generally very good. Almost everything about the outlook improves with early assessment, which is the single most important message on this page.
Getting a lump assessed
You do not need to treat an eyelid lesion as a same-day emergency, but equally you should not watch a changing lump for months. Any persistent or growing eyelid lump, especially with the features listed above, or a recurrent stye or chalazion in the same place, is worth having examined. You can read more about the full range of eyelid lumps, from the harmless to the serious, on the lump on the eyelid guide.
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Visit my private clinic →Common questions
How common is eyelid cancer?
Eyelid cancers are uncommon, but the eyelid is one of the more frequent sites on the face for skin cancer because the skin is thin and sun-exposed. Most are the slow-growing basal cell type.
What does eyelid cancer look like?
There is no single appearance, which is why changes matter more than looks. Common signs are a lump that grows over weeks to months, one that bleeds or crusts and will not heal, distortion of the lid margin, or loss of lashes in one area.
Is eyelid cancer dangerous?
Most eyelid cancers, particularly the common basal cell type, are slow growing and rarely spread, and are highly treatable when found early. Some types can be more aggressive, which is exactly why early assessment of a changing lesion matters.
Can a stye or chalazion be cancer?
The great majority are not. But a lump treated as a stye or chalazion that keeps returning in the same spot or never fully settles occasionally turns out to be something else, including a sebaceous gland carcinoma, so a persistent or recurrent one is worth having checked.
How is eyelid cancer treated?
Usually by surgical removal, often with the margins carefully checked, followed by reconstruction of the eyelid to restore its function and appearance. When caught early, cure rates are high and reconstructive results are generally very good.
This page is for general educational purposes and does not constitute medical advice. If you are concerned about your eyes or eyelids, please seek assessment from a qualified specialist. Last reviewed May 2026 by Chris Matthews, Consultant Ophthalmologist and Oculoplastic Surgeon.
