What Are Those Little Bumps on Your Areolas? Your Body's Built-In Nipple Moisturizer, Explained

At some point — maybe in the shower, maybe during a mirror session — you noticed them. Little raised bumps on the skin around your nipple. They look like tiny goosebumps that never went away.

Is this normal? Yes. Emphatically, boringly, reassuringly yes.

Those bumps are called Montgomery glands, and they're not just normal — they're genuinely useful.

What They Are

Montgomery glands are small sebaceous (oil-producing) glands located on the areola — the darker skin surrounding your nipple. They're the same type of gland you have on your face and scalp, but with a few bonus features unique to the breast.

They were formally described in 1837 by Irish obstetrician William Fetherstone Montgomery, though women had obviously been aware of their existence for considerably longer.

Each bump is a tiny gland sitting just beneath the areola's surface, combining elements of a regular oil gland with a miniature milk-producing structure.

Sources: Cleveland Clinic (updated February 2026); ScienceDirect

What They Do (It's Cleverer Than You'd Think)

These aren't decorative. Montgomery glands serve three distinct purposes:

1. They moisturize and protect your nipples. The glands continuously release a small amount of oil that keeps the areola and nipple lubricated — protecting against friction from clothing, moisture loss, and irritation. Your body's built-in nipple moisturizer. No product required.

2. They have antimicrobial properties. The secretions help protect against bacterial infection — a smart design feature for skin that's both thin and subject to constant friction.

3. During breastfeeding, they attract babies. Research shows the secretions produce scent compounds that newborns can detect, helping them locate the nipple and latch on. A study of 121 mothers found that women with more visible Montgomery glands had babies who gained weight faster and started breastfeeding sooner. The glands aren't just lubricating — they're sending a "dinner's ready" signal.

Sources: Wikipedia (Areolar gland); All4Birth factsheet; Cleveland Clinic

How Many Is Normal?

There's no correct number. The typical range is 4 to 28 glands per breast, with some women having fewer and others exceeding 30. The average is roughly 10–15 per areola. They tend to cluster in the upper-outer portion of the areola, and the count can differ between your two breasts.

Everyone has them — including men, though they're far less prominent without pregnancy-related hormonal triggers. If you have 6, that's normal. If you have 25, also normal. The variation is genetic.

Sources: MedicineNet; Cleveland Clinic; IVI UK

Bumps That Aren't Montgomery Glands

Most areola bumps are Montgomery glands. But occasionally you might spot something different:

A clogged gland — looks like a small, firm, pimple-like bump. Apply a warm cloth; don't squeeze it (that risks infection).

An ingrown hair — the areola has hair follicles (yes, that's normal). Avoid plucking to reduce the risk.

A pimple — the areola has pores, so yes, pimples happen there too. Don't pop it; let it resolve.

Eczema or dermatitis — itchy, dry, flaky patches. Manageable with gentle moisturizer; see a dermatologist if persistent.

Sources: Cleveland Clinic; UnityPoint Health

When to See a Doctor

Montgomery glands almost never need medical attention. But check in if you notice: a bump that's red, warm, painful, or oozing; a hard bump that's growing; discharge from the nipple itself; or a persistent crusty, scaly rash on the nipple that doesn't respond to moisturizer.

How to Care for Them

Keep it simple: don't use soap directly on nipples (the glands produce protective oil that soap strips away — warm water is sufficient), don't squeeze them, wear breathable fabrics, and skip products designed for other skin types. If breastfeeding, don't wash nipples before feeding — the scent helps your baby latch.

What's Next

Those bumps are a feature, not a bug. But you may have noticed that they seem more or less visible at different times in your life — during your period, during pregnancy, even when you're aroused. That's not random, and it's worth understanding why.

Read next: Why Do Those Areola Bumps Get Bigger Sometimes? Hormones, Pregnancy, and What Triggers Visibility → for the full breakdown on what makes Montgomery glands come and go.

This article is for informational purposes only and is not medical advice.