A bump on your bottom eyelid is most commonly 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 typically harmless, resolving on their own within one to two weeks. Less commonly, the bump could be a milia, a viral lesion, or (rarely) something that needs medical attention.
Styes: The Most Common Cause
A stye is a small, painful bump that forms when a gland or hair follicle along the eyelid margin gets infected. External styes appear right at the lash line, often developing a small yellowish head surrounded by redness and swelling. You may also notice tearing, light sensitivity, or a feeling like something is stuck in your eye. Within two to four days, most external styes rupture on their own, drain, and the pain resolves quickly.
Internal styes form deeper in the eyelid, inside one of the oil-producing glands (called meibomian glands) on the inner surface. These tend to be more painful and produce more swelling. In severe cases, they can cause fever or chills. When you flip the eyelid, you might see a small yellow spot on the inner surface. Internal styes can take longer to clear up.
Chalazia: Painless Lumps That Linger
A chalazion starts out looking almost identical to a stye. For the first day or two, the two are essentially indistinguishable. The difference becomes clear after that: while a stye stays painful and sits at the eyelid edge, a chalazion settles into the body of the eyelid as a firm, painless nodule. It’s not an infection. Instead, one of the oil glands in your eyelid gets blocked, and the trapped oil irritates the surrounding tissue, creating a small lump.
Chalazia are stubborn. They can persist for weeks or even months without treatment. If one is large enough, it can press on the surface of your eye and temporarily blur your vision.
Why These Bumps Keep Coming Back
If you get styes or chalazia repeatedly, the underlying problem is often meibomian gland dysfunction. Your lower eyelid contains dozens of tiny oil glands that release a thin layer of oil every time you blink, preventing your tears from evaporating too fast. When these glands become chronically blocked or start producing thickened oil, bumps form more easily. People with this condition often also have dry, gritty eyes and crusty eyelids in the morning.
Other Causes of Eyelid Bumps
Not every bump is a stye or chalazion. A few other possibilities:
- Milia: Tiny white or skin-colored cysts, usually just one to two millimeters across. They’re painless, very firm, and caused by trapped skin cells. They often resolve on their own but can be removed by a dermatologist if they bother you.
- Xanthelasma: Flat or slightly raised yellowish patches that appear near the inner corners of the eyelids. These are cholesterol deposits under the skin. They’re harmless on their own but can signal high cholesterol, diabetes, or thyroid problems.
- Molluscum contagiosum: Small, round, shiny bumps (about two to five millimeters) with a characteristic dimple in the center. These are caused by a virus and are especially common in children. They eventually clear without treatment but can spread to other areas.
- Papillomas: Pink, fleshy growths more common in adults. These are benign skin growths, sometimes linked to the human papillomavirus. They tend to be soft, irregularly shaped, and painless.
When a Bump Could Be Something Serious
Eyelid cancer is rare, but the lower eyelid is one of the more common places it appears on the face. Basal cell carcinoma, the most common type, typically looks like a shiny, translucent, or pearly bump. Tiny blood vessels may be visible on its surface. It can also appear as a lesion with dark spots and a slightly raised, see-through border. The key warning signs that distinguish a concerning bump from a harmless one: it doesn’t heal within a few weeks, it keeps growing, it bleeds or crusts over repeatedly, or you notice eyelash loss in the area around it. Any bump that matches this description deserves a prompt evaluation.
How to Treat an Eyelid Bump at Home
For a typical stye or chalazion, warm compresses are the first-line treatment and genuinely effective. Place a warm, moist cloth over your closed eye for five to ten minutes, three to six times a day. The heat softens the blocked oil and encourages the gland to drain. Be consistent. Most styes clear within one to two weeks with this approach alone.
While the bump is healing, avoid wearing contact lenses or eye makeup, both of which can introduce bacteria and slow recovery. Resist the urge to squeeze or pop the bump. This can spread infection deeper into the eyelid or push bacteria into surrounding tissue.
Chalazia are slower to respond. If warm compresses don’t shrink a chalazion after several weeks, a doctor can drain it through a small incision on the inner surface of the eyelid. Recovery from this procedure is straightforward: cold compresses for the first 48 hours, then back to warm compresses for about a week. Drainage is typically recommended when the chalazion is large, keeps recurring, or is pressing on the eye enough to distort vision.
Preventing Future Bumps
A simple daily eyelid hygiene routine makes a real difference if you’re prone to these bumps. In the shower, let warm water run over your closed eyes for about a minute to loosen any dried oil or debris. Then put a few drops of baby shampoo on a washcloth and gently scrub along your lash line, making sure to wipe across the lashes themselves. Rinse thoroughly. This keeps the oil glands clear and reduces the bacterial load along the eyelid margin.
If your eyes feel dry between cleanings, preservative-free artificial tears can help maintain a healthy tear film and keep the glands functioning properly. People who wear eye makeup should remove it completely every night, since residue can clog the same glands that cause styes and chalazia.