A small lump in your eyelid that is not a stye, not dangerous, and almost always treatable at home. Here is everything you need to know.
A chalazion is a small, firm lump that forms inside the eyelid when one of its oil-producing glands gets blocked. Most people notice it when they feel something new while touching their eye, or spot a bit of swelling in the mirror. It sits inside the lid like a small pea. Unlike a stye, it usually doesn’t hurt once it’s settled. Knowing why it forms and what to do about it makes the whole thing considerably less stressful, and for most people, the answer is simpler than they expect.
Overview
- A chalazion forms when a meibomian gland in the eyelid gets blocked and the oil inside builds up into a cyst
- Unlike a stye, it is not an infection and develops slowly over days to weeks
- Most chalazia resolve with warm compress treatment done four times a day
- If it hasn’t gone in four to six weeks, a steroid injection or a small incision under local anaesthetic sorts it in most cases
- People with blepharitis or rosacea tend to get them more often. Treating the underlying condition reduces how often they come back
- A chalazion is not contagious
Chalazion vs Stye: What Is the Difference?
Patients often come in not sure which one they have. Both cause a lump on the eyelid, but they are different things. Here is the simplest way to tell them apart:
- Usually painless once formed
- Develops slowly over days to weeks
- Firm and round, sits deep in the lid
- Not infectious, no bacteria involved
- Caused by a blocked meibomian gland
- Does not usually need antibiotics
- Painful, tender, often red
- Comes up quickly, within a day or two
- Sits near the lid edge, often at a lash root
- Caused by a bacterial infection
- May need antibiotic ointment
- Can occasionally turn into a chalazion
Why Does a Chalazion Form?
The meibomian glands
Your eyelids contain around 25 to 40 meibomian glands in each lid. They produce a thin oil that sits on top of your tear film and stops your tears evaporating too quickly. Think of them as tiny oil dispensers, with their openings running along the inner edge of the lid.
When one gets blocked, usually by thickened or hardened secretion, the oil backs up and forms a small cyst. The body reacts to the trapped material with inflammation. That is what causes the lump. Over time the redness and tenderness settle, leaving the firm, painless nodule most people recognise as a chalazion.
Who gets them more often?
Anyone can get a chalazion. They are more common in people with blepharitis or meibomian gland dysfunction, conditions where gland openings are chronically inflamed and prone to blocking. Rosacea is strongly linked to both. If you keep getting chalazia and you also have rosacea, treating the rosacea often cuts how often the eye problem comes back.
Chalazia are more common in adults than children. Hormonal changes and certain eye products have been reported as triggers, though the evidence for these is thinner.
Symptoms
A chalazion is usually a firm, round lump somewhere within the eyelid. A few things are worth knowing:
- In the early stages it may be tender, with the surrounding lid slightly red and swollen
- Once it matures, it settles into a painless, rubbery lump you can feel clearly even if it’s barely visible from outside
- It can be on either lid, and on the outer skin side or the inner conjunctival surface
- A large chalazion pressing on the cornea can temporarily blur or distort vision. This goes away once the chalazion is treated
- You can have more than one at a time, and they can recur in the same spot or somewhere new
Treatment
Most chalazia respond well to treatment. The approach depends on how new it is, how large, and whether conservative measures have already been tried.
Warm compresses
Five to ten minutes against the closed eyelid, four times a day. The heat softens the thickened secretion and makes drainage more likely. A heated eye mask beats a flannel because it stays warm longer. Many chalazia, particularly smaller ones, clear within four to six weeks. After each session, gentle massage toward the lid edge helps.
Eyelid hygiene
A gentle lid scrub or commercial lid wipe along the lash margin once or twice daily removes debris and reduces the bacterial load around the gland openings. Especially important if you have underlying blepharitis. Keep this routine going long-term and it cuts how often chalazia come back.
Steroid injection
If things haven’t shifted after four to six weeks, a small corticosteroid injection directly into the lump is usually next. Done in the clinic under local anaesthetic, takes a few minutes. About 75 to 80 percent of persistent chalazia respond to a single injection, with the lump shrinking over two to four weeks. A second injection is sometimes needed for larger ones.
Incision and curettage
For chalazia that don’t respond to injection, or that are very large, a small procedure is the most reliable option. A tiny incision through the inner surface of the eyelid (no visible skin scar) and the contents are scooped out. Five to ten minutes under local anaesthetic. The lid will be bruised and swollen for a few days, but recovery is usually straightforward.
If Your Chalazion Keeps Coming Back
Some people get chalazia repeatedly. When that happens, it almost always means there’s an underlying meibomian gland problem that hasn’t been properly addressed. Just treating each one as it appears without tackling the root cause leads to a frustrating cycle.
More than one or two a year? The most useful step is a proper assessment of your meibomian gland health. A consistent daily routine of warm compresses and lid cleaning, plus treatment of any associated rosacea or blepharitis, makes a real difference. Some patients benefit from in-office treatments like thermal pulsation or intense pulsed light therapy when home treatment isn’t enough.
In adults over 40 with a recurring or unusual-looking chalazion that isn’t responding to treatment, the excised material should be sent for histological examination. Very rarely, what looks like a chalazion turns out to be a sebaceous gland carcinoma. Low likelihood, but an important check in the right circumstances.
See an Ophthalmologist Promptly If You Notice
- The lump is growing rapidly, very painful, or redness is spreading beyond the eyelid
- Fever alongside a swollen, red eyelid
- The lump is irregular in shape, bleeds easily, causes lash loss, or has been growing for more than three months without responding to treatment
- Vision is noticeably reduced or distorted
- A chalazion that has burst through the skin leaving a persistent red area
Most chalazia are completely harmless. The signs above suggest something that needs a closer look: infection, a complication, or rarely something else entirely. When in doubt, a brief review gets you the right answer quickly.
Questions People Actually Ask About Chalazia
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How long does it take to go away?
With warm compresses four times a day, many chalazia clear in four to six weeks. Start early, before the cyst firms up and becomes fibrous. That gives you the best chance. Left for more than two or three months without treatment, it’s unlikely to clear on its own. The good news is that a steroid injection or drainage procedure is quick and works well when it gets to that point.
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Can I pop it myself?
Please don’t. Squeezing or puncturing a chalazion at home risks infection, scarring, and making everything worse. The contents are inside a fibrous cyst wall, and they won’t drain with external pressure. If it needs draining, your ophthalmologist can do it properly. It takes a few minutes and is genuinely not as bad as it sounds.
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Is it contagious?
Not at all. A chalazion is a sterile cyst, not an infection. There’s no risk of passing it to anyone else. This sets it apart from a stye, which is bacterial and warrants a little more care around hand hygiene while active.
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It came back in exactly the same spot. Why?
Usually means the original cyst didn’t fully resolve, or that particular gland is prone to blocking because of underlying blepharitis or meibomian gland dysfunction. If it keeps recurring in exactly the same place despite treatment, surgical excision with histological examination is the right move. That’s the step that rules out anything more serious.
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Can it affect my vision?
Small and medium chalazia don’t affect vision. A large one pressing on the cornea can temporarily cause astigmatism, meaning blurry or slightly distorted vision. It clears once the chalazion is treated. In young children this is worth treating more promptly, since persistent astigmatism during the critical years of visual development can contribute to amblyopia.
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Do I need time off work after the drainage procedure?
Most people take one day off and are back at a desk the next. The procedure is done under local anaesthetic and takes five to ten minutes. Afterward the lid is typically swollen and bruised for a few days. Avoid dust, swimming, and heavy lifting for about a week. No stitches, no visible scar.
If you would like to learn more, the American Optometric Association’s chalazion page offers a clear overview of symptoms, causes, and treatment.