A bump on your bottom eyelid is most often a stye or a chalazion, both caused by blocked oil glands in the eyelid. These two conditions account for the vast majority of eyelid bumps and are not dangerous, though they look and feel different from each other. Several other conditions can also cause a bump in this area, and knowing what to look for helps you figure out what you’re dealing with.
Styes: Painful Bumps Near the Lash Line
A stye is an infected, swollen bump that forms right at the edge of your eyelid, usually at the base of an eyelash. It’s caused by bacteria (typically staph) getting into a hair follicle or one of the tiny oil glands along your lash line. Within a day or two, a small yellowish pustule develops, and the area around it turns red and tender. Styes hurt. That’s the most reliable way to distinguish them from other eyelid bumps.
There’s also a less common type called an internal stye, which forms deeper inside the lid when one of the larger oil-producing glands gets infected. You won’t see a visible pus-filled head on the outside. Instead, flipping the lower lid gently reveals a small raised yellow area on the inner surface. Internal styes cause the same pain and swelling as external ones.
Most styes drain on their own within a week with warm compress treatment. If one doesn’t resolve, it often transitions into a chalazion.
Chalazion: A Firm, Painless Lump
A chalazion starts when an oil gland in the eyelid gets blocked but not infected. Oily material backs up behind the blockage and triggers inflammation, forming a firm, round nodule in the body of the eyelid, set back from the lash line. Unlike a stye, a chalazion is typically painless once it fully forms, though the area may be tender during the first day or two while it’s developing.
With consistent warm compresses, a chalazion often resolves in about a week. Left alone, it can take four to six weeks to clear, and some persist for months. If a chalazion doesn’t respond to home care, an eye doctor can treat it with a steroid injection into the bump or a small in-office drainage procedure. The American Academy of Ophthalmology notes that steroid injections are a less invasive first-line option when the diagnosis is straightforward.
One important note: a bump that keeps coming back in the same spot, doesn’t respond to treatment, or looks unusual should be evaluated by an eye doctor. Recurring bumps in one location can occasionally signal something more serious.
Other Possible Causes
Milia
Milia are tiny white or yellowish bumps, each about the size of a pinhead, caused by dead skin cells trapped beneath the surface. They’re firm, dome-shaped, and completely painless. They’re harmless and sometimes go away on their own, though a dermatologist can remove them if they bother you.
Xanthelasma
These are flat or slightly raised yellowish patches that appear on or near the eyelids, often closer to the nose. They’re soft or semi-solid and made of cholesterol deposits under the skin. Xanthelasma itself is harmless, but it can be associated with high cholesterol, diabetes, thyroid problems, or excess weight. If you notice these, it’s worth having your cholesterol levels checked.
Molluscum Contagiosum
This viral skin infection produces small (1 to 3 mm), dome-shaped, waxy bumps with a tiny dimple in the center. They often appear in clusters. Molluscum is more common in children and people with weakened immune systems. When these bumps sit on or near the eyelid, they can shed viral particles into the tear film and cause chronic eye irritation. Treatment options include removal by freezing, scraping, or minor excision, and clearing the skin bumps resolves any associated eye irritation.
Skin Tags and Papillomas
Small, flesh-colored, painless growths that hang off the skin surface by a thin stalk. They’re benign and extremely common, especially with age. They don’t require treatment unless they’re irritating or cosmetically bothersome.
When a Bump Could Be Skin Cancer
Skin cancer on the eyelid is uncommon, but it does happen. The lower eyelid is actually the most frequent site for eyelid skin cancers, with basal cell carcinoma being the most common type. Warning signs include a shiny, translucent, or pearly bump (which may look brown or glossy black on darker skin), tiny visible blood vessels on the surface, a bump that bleeds and scabs over repeatedly, a flat scaly patch, or a waxy scar-like area without a clear border. Loss of eyelashes in the area around the bump is another red flag. Any bump that bleeds, crusts, changes shape, or doesn’t heal over several weeks deserves a professional evaluation.
Warm Compress Treatment
For styes and chalazia, warm compresses are the standard first step. Soak a clean washcloth in warm (not hot) water, wring it out, and hold it against your closed eye for 5 to 10 minutes, 3 to 6 times a day. Rewarm the cloth as it cools. Don’t microwave a wet cloth, as it can overheat unevenly and burn the delicate eyelid skin. After applying the compress, you can gently massage the eyelid to help the blocked gland open and drain.
Avoid squeezing or popping an eyelid bump. This can spread infection and worsen swelling.
Preventing Recurrent Eyelid Bumps
If you get eyelid bumps repeatedly, the underlying issue is often blepharitis, a chronic low-grade inflammation of the eyelid margins. Daily eyelid hygiene helps keep it under control. The routine involves three steps: first, apply a warm washcloth over your closed eyes for several minutes to loosen oily debris and crusty deposits. Then gently massage the eyelids. Finally, clean along the base of your lashes with a clean washcloth or cotton swab moistened with warm water and a few drops of diluted baby shampoo or a store-bought eyelid cleanser. Rinse with warm water and pat dry.
Use a separate washcloth or swab for each eye to avoid spreading bacteria. Even after your symptoms improve, keeping up this routine daily is important, as blepharitis tends to be a chronic condition that flares when eyelid hygiene lapses.