1. Stye (Hordeolum) – The Most Common Culprit
What it is: A small, red, tender bump near the edge of the eyelid, caused by a blocked oil gland or minor bacterial infection.
What it looks like:
Red, pimple-like bump (may have a white or yellow head)
Tender or painful to touch
May cause mild swelling, tearing, or light sensitivity
Often appears suddenly overnight
Why it happens: Rubbing eyes with unwashed hands, blepharitis (eyelid inflammation), or minor gland blockage.
Typical course: Usually resolves on its own in 3–7 days with warm compresses.
2. Chalazion – The "Quiet Cousin" of a Stye
What it is: A firm, painless lump deeper in the eyelid, caused by a blocked meibomian (oil) gland.
What it looks like:Smooth, round bump away from the eyelid edge
Usually not painful (may feel slightly tender early on)
Can grow slowly over days or weeks
May cause mild blurring if large enough to press on the eye
Why it happens: Chronic gland blockage; sometimes follows a stye.
Typical course: May take weeks to resolve; warm compresses help. Persistent cases may need medical evaluation.
3. Milia – Tiny White Bumps
What it is: Small, white or yellowish cysts filled with keratin, common in infants and young children.
What it looks like:
Tiny (1–2 mm), firm, pearly-white bumps
A Sudden Lump on Your Child’s Eyelid? Here’s What It Could Be—and What Parents Should Do
