A bump under your eye is almost always harmless, but the cause depends on what it looks like, how it feels, and how long it’s been there. The most common culprits are blocked oil glands, trapped skin cells, overactive sweat glands, or minor allergic reactions. Here’s how to tell what you’re dealing with and what to do about it.
Chalazion: A Firm, Painless Lump
The single most common reason for a noticeable bump near the eye is a chalazion, which forms when one of the tiny oil glands in your eyelid gets blocked. Your eyelids contain dozens of these glands (called meibomian glands), and when one clogs, trapped oil builds up, the duct swells, and a round lump forms. Over time the blocked gland can develop into a small cyst.
A chalazion typically appears farther back on the eyelid, away from the lash line, and can show up on either the upper or lower lid. It may feel sore or tender at first, but it’s not the kind of pain that stops you from opening your eye. The bump itself can stick around for months if left alone. Warm compresses are the standard home treatment: place a clean, warm, moist cloth over the area for 5 to 10 minutes, 3 to 6 times a day. Don’t microwave a wet cloth or use hot water, as the skin around your eye is thin and burns easily.
Stye: A Painful Bump Near the Lashes
If the bump is right along your lash line and hurts, it’s more likely a stye. Styes are bacterial infections of the oil glands or hair follicles at the base of your eyelashes. They look like a small pimple, often with a visible white or yellow head, and the surrounding skin tends to be red and swollen.
The good news is that styes usually resolve on their own within one to two weeks. The same warm compress routine helps here too. Avoid squeezing or popping the bump, which can spread the infection deeper into the eyelid.
Milia: Tiny White or Yellow Dots
If what you’re seeing is a small, hard, white or yellowish dot (not red, not painful), you’re probably looking at a milium. Milia form when old skin cells don’t shed normally and get trapped just beneath the surface. Over time these cells harden into tiny cysts, usually 1 to 2 millimeters across. They’re extremely common on the cheeks, nose, and under-eye area.
Milia aren’t inflamed and don’t hurt. They can’t be popped like a pimple because the trapped material sits under a layer of intact skin. In many cases they resolve on their own over weeks or months. If they bother you cosmetically, a dermatologist can extract them with a small sterile needle or use gentle exfoliation techniques.
Heavy, occlusive skincare products can make milia worse. If you’re prone to these bumps, avoid thick eye creams containing petrolatum, paraffin, or mineral oil around the eye area. Lightweight, gel-textured eye products with ingredients like peptides, ceramides, or niacinamide are less likely to trap dead skin cells.
Syringomas: Clusters of Small Firm Bumps
If you notice a group of tiny, firm, skin-colored or yellowish bumps clustered under your eyes, syringomas are a strong possibility. These form when your sweat glands overgrow, creating small papules that are typically 1 to 3 millimeters in diameter. They look similar to milia but tend to appear in clusters rather than as isolated dots, and they have a firmer texture.
Syringomas are completely benign and don’t cause pain or itching. They’re the most common type of localized sweat gland overgrowth on the face and aren’t associated with any underlying medical condition. The downside is they don’t go away on their own. If they bother you, a dermatologist can treat them with laser therapy or a technique that uses electrical current to break down the tissue.
Xanthelasma: Yellowish Flat Patches
Soft, yellowish, slightly raised patches on or near the inner corners of the eyelids are a distinct condition called xanthelasma. These are cholesterol deposits in the skin. They’re flat rather than round, and they often appear symmetrically on both sides of the face.
About 50% of adults with xanthelasma have abnormal cholesterol or lipid levels. That doesn’t mean the bumps themselves are dangerous, but they can be a visible signal that your blood lipid levels deserve a check. This is especially worth investigating if you’re under 40 or have a family history of high cholesterol. The deposits don’t resolve on their own and tend to grow slowly over time.
Allergic Contact Dermatitis
Sometimes the “bump” under your eye is actually a cluster of small raised spots caused by an allergic reaction. The skin around your eyes is thinner and more permeable than the rest of your face, making it especially vulnerable to irritants. Allergic contact dermatitis around the eyes causes small papules, redness, and swelling that can easily be mistaken for another condition.
The most common triggers, in order of frequency, are metals (nickel in eyeglass frames, chrome in cosmetics), shellac (a tackifier used in mascara and other eye makeup), preservatives in skincare and eye drops, topical antibiotics, and fragrances. One surprising source: nail products. Acrylates from gel or artificial nails frequently transfer to the eyelids when you touch your face, making them a well-documented cause of eyelid dermatitis. If the bump appeared after you started using a new product or switched eyeglasses, the timing itself is a strong clue.
Removing the trigger usually clears the reaction within a week or two. If you can’t identify the cause, a dermatologist can do patch testing to pinpoint the specific allergen.
Signs That Need a Closer Look
Most under-eye bumps are benign, but a few features warrant a professional evaluation. Basal cell carcinoma, the most common type of skin cancer, can appear on the eyelid as a small, shiny, pearly bump that may have tiny visible blood vessels running through it. In lighter skin, these bumps are often pink or translucent. In darker skin, they share the same pearly or translucent quality but tend to be darker in color. Other warning signs include a bump that bleeds, crusts over repeatedly, or causes nearby eyelashes to fall out.
A bump that grows steadily over weeks, changes color, or develops irregular borders is also worth getting checked. The eyelid area receives significant sun exposure over a lifetime, and early detection makes these skin cancers very treatable.
Telling the Difference at a Glance
- Painful, near the lash line, resolves in 1 to 2 weeks: likely a stye
- Firm, painless, farther from the lash line, lasts weeks to months: likely a chalazion
- Tiny white or yellow hard dot, 1 to 2 mm: likely a milium
- Cluster of firm, skin-colored bumps, 1 to 3 mm each: likely syringomas
- Soft yellowish flat patch near the inner corner of the eye: likely xanthelasma
- Red, itchy, appeared after a new product: likely an allergic reaction
- Shiny, pearly, slowly growing, with visible blood vessels: needs professional evaluation