There is a lump on my eyelid. What could it be?
The eyelid is one of the most common places on the body to develop a lump. Most are harmless and resolve on their own. Some require treatment. A small minority need urgent specialist attention. This guide helps you understand the difference.
Most eyelid lumps are benign
When patients discover a lump on their eyelid, the first fear is often cancer. It is worth saying clearly at the outset: the overwhelming majority of eyelid lumps are entirely benign. Styes, chalazia, milia, xanthelasma, papillomas, sebaceous cysts, and cysts of Moll are all extremely common, and none of them are dangerous in the way that a malignant lesion would be.
The eyelid has an unusually high density of glands, hair follicles, and specialised skin, all of which can give rise to lumps for completely ordinary reasons. Understanding what you are likely dealing with is the most useful first step.
Stye (hordeolum)
A red, painful, pus-filled lump at the lid margin. Caused by a bacterial infection of a lash follicle or gland. Usually resolves within one to two weeks.
Chalazion
A painless, firm lump within the eyelid. Caused by a blocked meibomian gland. May persist for weeks or months, but most resolve without treatment.
Xanthelasma
Flat, yellowish plaques near the inner corner of the lid. Lipid deposits in the skin. Benign, though worth a cholesterol check. Removable by an oculoplastic surgeon.
Milia
Tiny, white, cyst-like dots, typically 1 to 2 mm. Keratin trapped beneath the skin surface. Very common and harmless; most can be removed by a practitioner if desired.
Papilloma (skin tag)
A soft, fleshy, often pedunculated growth on the eyelid skin. Caused by HPV in some cases, though many are viral-free. Benign and straightforward to remove.
Sebaceous cyst
A smooth, mobile lump beneath the eyelid skin. Contains keratin-rich material from a blocked follicle. Benign, and easily excised if troublesome.
Cyst of Moll
A small, clear, fluid-filled cyst at the eyelid margin, arising from a sweat gland (gland of Moll). Typically 1 to 3 mm, translucent, and painless. Benign and easily removed by an oculoplastic surgeon if desired.
A minority of eyelid lumps are malignant
Eyelid cancers exist, and they are worth knowing about. They are far less common than benign lumps, but they share an important characteristic: they tend to be painless, and they can therefore be mistaken for something harmless for months or years before the correct diagnosis is made. The lower eyelid, because it receives more sun exposure, is the most common site.
The four main cancers of the eyelid are described below, each with its own pattern of behaviour and appearance. Click through to read more about each one.
Basal cell carcinoma (BCC)
A slow-growing, pearly or skin-coloured lump with a rolled border. Often ulcerates centrally. Locally destructive but almost never spreads to other organs.
Squamous cell carcinoma (SCC)
A scaly, ulcerated lump that tends to grow faster than BCC. Can metastasise to lymph nodes. More aggressive and requires prompt treatment.
Sebaceous gland carcinoma
Often mistaken for a recurrent chalazion. Arises from the meibomian or Zeis glands. A chalazion that keeps coming back in the same place always needs specialist review.
Melanoma
A pigmented, changing lesion on the eyelid skin or at the lid margin. Rare but serious. Requires prompt staging and treatment by a specialist team.
The features that always warrant specialist assessment
You do not need to be able to diagnose your eyelid lump from a list. That is not what this is for. But there are certain features that, if present, mean you should seek a specialist opinion promptly rather than waiting and watching.
- It has not resolved after six to eight weeks, or it is slowly growing
- The surface is ulcerated, crusted, or bleeds without injury
- Eyelashes are missing from the area around the lump
- A chalazion or stye keeps returning in exactly the same spot
- The lump is pigmented and has changed in size, shape, or colour
- The eyelid margin is distorted or the lump is involving the lid edge
- You have had significant cumulative sun exposure, particularly a history of other skin cancers
None of these features confirm a cancer diagnosis. Many people with one or more of these features will still turn out to have something benign. But they are the features an oculoplastic surgeon would want to know about, and an examination in clinic is the only way to be certain.
The most important thing to understand about eyelid cancers is that they are treated far more successfully when caught early. A small, well-defined BCC treated promptly can be cured with straightforward surgery. The same tumour, left for years, may require extensive reconstruction. Early assessment costs very little in time or inconvenience.
A sensible approach to an eyelid lump
If you have noticed a lump on your eyelid, the most reasonable first step depends on what it looks and feels like, and how long it has been there.
A tender, red lump that appeared suddenly is almost certainly a stye. Warm compresses for five to ten minutes, three times a day, will resolve most styes within a week or two. If it does not settle, or if it becomes a firm, painless lump that persists beyond eight weeks, that is a chalazion, and it is worth seeing your GP or an ophthalmologist.
A painless lump that has been present for more than a few months, particularly if it has any of the red flag features described above, should be seen by an oculoplastic surgeon. A consultation involves a brief, comfortable examination and, if needed, a biopsy, which is a simple in-clinic procedure under local anaesthetic.
You do not need to wait for a GP referral to see a private oculoplastic surgeon. If you have concerns about a lump on your eyelid, booking a direct consultation is straightforward and often faster than going through the NHS pathway.
Mr Chris Matthews is a consultant oculoplastic surgeon in the North East of England. He assesses and treats the full range of eyelid lumps, from chalazion drainage and papilloma removal to biopsy and cancer surgery.
Book a consultation ›Common questions
Is a lump on the eyelid always serious?
No. The vast majority of eyelid lumps are benign. Styes, chalazia, milia, papillomas, and xanthelasma together account for most cases. Malignant eyelid tumours are comparatively uncommon, though they do occur and can look deceptively like ordinary lumps.
How do I know if an eyelid lump is a stye or a chalazion?
A stye is painful, red, and inflamed, and usually comes on over a day or two. A chalazion is painless and firm, and develops more slowly. A stye that resolves and leaves a residual painless lump has likely converted to a chalazion.
Can an eyelid lump affect my vision?
Most small eyelid lumps do not affect vision. A large chalazion sitting on the upper lid can occasionally press on the cornea and cause a temporary, mild blurring of vision, which resolves once the chalazion is treated. A lump at the inner corner may occasionally affect the tear drainage pathway.
My chalazion keeps coming back. Should I be worried?
A chalazion that returns once or twice after treatment is not unusual. A chalazion or lump-like lesion that repeatedly recurs in exactly the same location on the eyelid, without ever fully resolving, should always be seen by an oculoplastic surgeon, as this pattern can occasionally indicate sebaceous gland carcinoma, a condition that mimics a chalazion.
What is the most common eyelid cancer?
Basal cell carcinoma (BCC) accounts for approximately 90% of all eyelid skin cancers. It is slow-growing and locally invasive but almost never spreads to other organs. The lower eyelid and medial canthus are the most common sites.
