Stye vs Chalazion: Differences, Home Care and When to Get Help

A lump on the eyelid can be alarming, but most are caused by two common and usually harmless conditions: a stye and a chalazion. Both involve the small glands of the eyelid and both can make the lid swollen and uncomfortable. They differ, however, in their cause, how they feel and how they are best treated. A stye is a small, painful infection at the edge of the eyelid, while a chalazion is a firm, usually painless lump caused by a blocked oil gland.

The good news is that most styes and chalazia settle on their own or with simple home care within days to weeks. Knowing which one you have helps you choose the right approach, avoid making things worse and recognise the rare situations in which you need medical help. This guide explains the differences, step-by-step home care, why squeezing is a bad idea, when drainage or other treatment is needed and what to do if lumps keep coming back.

What is a stye?

A stye, medically called a hordeolum, is an acute infection, usually by Staphylococcus bacteria, of one of the small glands in the eyelid. An external stye forms at the base of an eyelash, in a lash follicle or the small glands next to it, and looks like a red, tender pimple on the lid margin, often with a yellow or white point. An internal stye involves a meibomian gland within the lid and points towards the inner surface; it may be more painful and cause more swelling.

Styes develop over a day or two, are often painful to touch and can make the eye water or feel as if something is in it. Most come to a head, drain on their own and heal within about a week.

What is a chalazion?

A chalazion is a lump caused by a blocked meibomian gland, one of the oil glands that line the eyelid margins and supply the oily layer of your tears. When the gland opening becomes blocked, the oil builds up and leaks into the surrounding tissue, causing a chronic inflammatory reaction, not an infection. The result is a firm, round, rubbery lump in the lid, usually a few millimetres from the edge. It may start slightly red and tender, but typically becomes painless over time. A large chalazion can press on the eye and blur vision by causing temporary astigmatism.

Chalazia grow more slowly than styes and can last weeks to months. Many disappear without treatment, while others persist. An internal stye that does not drain fully can sometimes turn into a chalazion.

Stye vs chalazion: how to tell the difference

Causes and risk factors

Both conditions are more likely when the eyelid margins and glands are not working well. Common contributing factors include:

• Blepharitis, chronic inflammation of the lid margins. See our guide to blepharitis.
• Meibomian gland dysfunction, where the oil becomes thick and blocks the gland openings, which is also a major cause of evaporative dry eye.
• Rosacea and seborrhoeic dermatitis.
• Touching or rubbing the eyes with unwashed hands.
• Old or contaminated eye makeup, or sleeping without removing makeup. See eye makeup safety.
• Contact lenses handled without proper hygiene.
• Diabetes and other conditions that affect skin and immunity.
• Possibly stress, hormonal changes and lack of sleep, which may affect gland secretion.

Home treatment step by step

The same basic approach works for both styes and chalazia. The aim is to soften the trapped oil, help the gland drain and keep the area clean.

1. Wash your hands thoroughly before touching your eyelids.
2. Apply a warm compress: soak a clean face cloth in warm water (comfortably warm, never hot), wring it out and hold it on the closed eyelid for 5 to 10 minutes. Re-warm it as it cools. A reusable heated eye mask works well. Our guided warm compress routine walks you through it.
3. Repeat 3 to 4 times a day while the lump is present.
4. Massage gently after each compress: with a clean fingertip, gently massage the lump in small circles, and for a chalazion, stroke in the direction of the lid margin to encourage the gland to drain. Stop if it is painful.
5. Clean the lid margin once or twice a day with a lid wipe, a dedicated lid cleanser or a cotton bud dipped in cooled boiled water.
6. Avoid eye makeup and contact lenses until the lump has resolved.
7. Take simple painkillers if needed, following the packet instructions.

Why you should never squeeze a stye or chalazion

It is tempting to treat an eyelid lump like a spot, but squeezing or trying to pop it with a needle is risky. Pressure can push bacteria deeper into the lid tissue and lead to a spreading skin infection called preseptal (periorbital) cellulitis. It can also damage the delicate gland, cause bleeding and leave a scar or notch in the lid margin. If a stye comes to a head, let it drain naturally with warm compresses. If a lump needs draining, an eye professional can do this safely and hygienically.

Medical treatment and when drainage is needed

For styes

Most styes heal without antibiotics. Antibiotic ointment may be suggested if the stye is draining or there is surrounding lid infection, and oral antibiotics are reserved for spreading infection (cellulitis). An eye doctor may sometimes lance a large, pointing stye or remove the affected eyelash to allow drainage.

For chalazia

If a chalazion has not improved after several weeks of consistent home care, is large, is affecting vision or bothers you cosmetically, an eye doctor may offer:

• Incision and curettage: a quick procedure under local anaesthetic. The lid is turned over, a small cut is made on the inner surface and the contents are scraped out. There is usually no visible scar. A pad may be worn for a few hours and the lid may be bruised for a few days.
• Steroid injection: a small injection into or around the lump can reduce inflammation and help it shrink. It can lighten the skin in people with darker skin tones, so it is chosen carefully.
• Treatment of the underlying lid disease, such as blepharitis or rosacea, with lid hygiene and sometimes oral antibiotics used for their anti-inflammatory effect.

In many health systems, chalazion removal is not offered for purely cosmetic reasons, so persistence with warm compresses is often encouraged first. Learn more about common procedures in our guide to eye surgery options.

Recurrent styes and chalazia

Some people develop lumps again and again. This almost always reflects an ongoing problem with the eyelid margins rather than bad luck. Managing the cause can greatly reduce recurrences:

• Daily lid hygiene: a warm compress and lid cleaning routine, continued even when the eyelids look fine.
• Treat blepharitis and meibomian gland dysfunction with the help of an optometrist or eye doctor.
• Address skin conditions such as rosacea or seborrhoeic dermatitis with your doctor.
• Replace eye makeup every few months and never share it.
• Keep hands away from the eyes and follow good contact lens hygiene.
• Check blood sugar if you have frequent styes and other symptoms of diabetes.

Styes and chalazia in children

Children commonly develop styes and chalazia, often because they rub their eyes. The same home treatment applies: warm compresses, gentle cleaning and patience. Children may find compresses easier during a bath or while watching a story. Because a large chalazion can blur vision and, in young children, potentially affect visual development, ongoing lumps should be reviewed by an eye professional.

When to see a doctor

Make an appointment with a pharmacist, optometrist or GP if a stye has not improved after about a week, if a chalazion persists for more than a few weeks despite regular warm compresses, if it is affecting your vision, or if lumps keep coming back.