A bump under your eyelid is most likely a chalazion, a painless swelling caused by a blocked oil gland. Less commonly, it could be an internal stye, which looks similar but is caused by an infection and tends to hurt. Both are very common and usually resolve on their own, but knowing which one you’re dealing with helps you manage it properly.
Chalazion: The Most Common Cause
Your eyelids contain dozens of tiny oil glands (called meibomian glands) that keep your tears from evaporating too quickly. When one of these glands gets clogged, oil backs up and forms a firm, round lump under the skin. That’s a chalazion. It typically develops farther back on the eyelid, away from the lash line, and starts out painless. You might not even notice it until it’s large enough to feel when you blink or see when you flip your eyelid up in a mirror.
As a chalazion grows, the surrounding eyelid can become red and mildly tender, but it rarely causes the entire eyelid to swell. The bump itself feels smooth and rubbery, not sharp or throbbing the way an infected lesion does. Chalazia often heal without treatment within a month, though some take several months to disappear completely.
Internal Stye: The Painful Version
An internal stye is an infection in one of those same oil glands. Unlike a chalazion, it hurts. The area is red, swollen, and tender to the touch, and the bump may appear yellowish or white at its center, similar to a pimple. Internal styes can make the entire eyelid puffy and sore, and they sometimes cause watery eyes or a gritty feeling.
External styes grow at the base of an eyelash rather than under the lid. If the bump you’re feeling is along your lash line and very painful, that’s the likely culprit. Both types of stye are caused by bacterial infection and tend to come to a head and drain on their own within a week or so.
Why You Keep Getting Eyelid Bumps
Some people get a single chalazion or stye and never deal with one again. Others get them repeatedly, and there’s usually an underlying reason. Chronic eyelid inflammation (blepharitis) is the most common driver. It causes a low-grade irritation along the lid margin that makes oil glands more likely to clog. Rosacea, a skin condition that causes facial redness and flushing, is another frequent contributor. People with seborrheic dermatitis, high blood lipid levels, or weakened immune systems also face higher recurrence rates.
If you’ve had more than one or two of these bumps in the past year, one of these conditions is worth investigating. Treating the underlying cause is the most effective way to break the cycle.
What to Do at Home
The first-line treatment for both chalazia and styes is a warm compress. Soak a clean washcloth in warm (not hot) water, wring it out, and hold it against your closed eyelid for 5 to 10 minutes, 3 to 6 times a day. The heat softens the clogged oil and encourages the gland to drain naturally. Don’t microwave a wet cloth to heat it, as it can develop hot spots that burn the delicate eyelid skin.
After each compress session, you can gently massage the area with clean fingers to help move the blockage along. Avoid squeezing or trying to pop the bump. Unlike a pimple, these glands sit deep in the lid tissue, and forcing them can push the contents deeper or introduce new bacteria. Keep the area clean by washing your eyelids daily with warm water or a gentle lid cleanser, especially if you wear eye makeup.
When a Bump Needs Medical Attention
Most eyelid bumps are harmless, but a few situations call for a closer look. If a chalazion hasn’t improved after a month of consistent warm compresses, or if it’s large enough to press on your eyeball and blur your vision, a doctor can offer additional treatment. For persistent bumps, a steroid injection into the lesion can shrink the inflammation. If that doesn’t work after two or three attempts, a minor in-office procedure can remove it. The doctor flips your eyelid, makes a small incision on the inner surface, and scoops out the clogged material. It’s done under local anesthesia and typically heals quickly since the cut is on the inside of the lid, leaving no visible scar.
Rarely, what looks like a recurring chalazion can be something more serious. Eyelid cancers, though uncommon, can mimic a chalazion that keeps coming back in the same spot. Warning signs that distinguish a potentially cancerous growth include loss of eyelashes near the bump, broken skin on the eyelid that won’t heal, a spreading growth that appears red, brown, or black, and progressive thickening or distortion of the eyelid shape. A doctor may recommend a biopsy of any bump that recurs in the same location, changes in appearance, or doesn’t respond to standard treatment.
Keeping Your Eyelid Glands Healthy
Daily eyelid hygiene is the simplest way to prevent blockages from forming in the first place. A brief warm compress each morning, even when you don’t have a bump, keeps the oil glands flowing. If you wear eye makeup, remove it thoroughly every night, since residue along the lash line can clog gland openings. Replace mascara and eyeliner every few months, as bacteria accumulate in the tubes over time. If you have blepharitis or rosacea, managing those conditions with your doctor significantly reduces how often eyelid bumps recur.