The small bumps scattered around your nipple are almost certainly Montgomery glands, a normal part of breast anatomy that everyone has. Each areola (the darker circle of skin surrounding the nipple) can have anywhere from zero to about 40 of these tiny raised spots, with most people having 10 to 15 on each side. They’re oil-producing glands, and in most cases they require no treatment or concern at all.
That said, not every bump on the areola is a Montgomery gland. Blocked glands, follicle irritation, hormonal shifts, and, rarely, more serious conditions can all change the look and feel of this skin. Here’s how to tell what’s normal and what deserves a closer look.
Montgomery Glands: The Most Common Cause
Montgomery glands are small sebaceous (oil-producing) glands embedded in the areola. They release a clear, oily substance through tiny openings on the skin’s surface called tubercles, which is what you see and feel as small bumps. This oil serves several purposes: it lubricates and protects the delicate skin of the nipple and areola, keeps the area’s pH slightly acidic to discourage bacteria and yeast from overgrowing, and during breastfeeding, produces a scent that helps a newborn find and latch onto the nipple.
Montgomery glands also have a direct connection to the mammary glands beneath them and can release small amounts of milk. Some researchers believe they may function as backup milk-producing glands when needed.
The number, size, and visibility of these glands varies widely. Some people barely notice theirs, while others have prominent, easily visible bumps. Both ends of that spectrum are completely normal. You may have had them your whole life and only just noticed them, perhaps after a change in lighting, weight, or simply paying closer attention.
Why They Become More Noticeable
Hormonal changes are the most common reason Montgomery glands suddenly seem more prominent. During early pregnancy, rising levels of progesterone cause breast tissue to change rapidly. Many people notice tingling, soreness, and the appearance of more visible bumps on the areola as one of the first signs of pregnancy, sometimes before a missed period. The glands enlarge in preparation for breastfeeding, ramping up oil production to protect the nipple from the friction and saliva that come with nursing.
Puberty, menstrual cycles, and hormonal contraceptives can all trigger similar changes on a smaller scale. If the bumps appeared seemingly overnight but aren’t painful or discolored, a hormonal shift is the likeliest explanation.
Blocked or Infected Glands
Like any oil gland, Montgomery glands can become clogged. A blocked gland typically looks like a single bump that’s grown larger, firmer, or more tender than the others around it. If bacteria enter the blocked opening, an infection can develop. Signs of infection include:
- Redness or color change in the skin immediately around the bump
- Pain or tenderness that worsens over a few days
- Discharge that’s white, yellow, green, or dark in color
- Warmth or swelling in the surrounding areola
- Fever or feeling unwell, which can signal the infection is spreading
A related condition, periductal mastitis, involves inflammation of a milk duct near the nipple and can produce similar symptoms: breast tenderness, areolar swelling, and sometimes a lump or thickened area you can feel beneath the skin. This is more common in people who are breastfeeding but can happen at any time.
Squeezing or picking at the bumps is the single most common way people accidentally introduce bacteria and turn a harmless gland into an infected one. Resist the urge. If a bump looks inflamed or is producing discharge, it’s worth getting evaluated rather than trying to drain it yourself.
Other Types of Bumps on the Areola
Folliculitis
The areola has hair follicles, even if the hairs themselves are fine or invisible. These follicles can become irritated or infected, especially after shaving, waxing, or friction from tight clothing. Folliculitis typically looks like small red or white-tipped bumps clustered around individual hair sites. It’s caused by staph bacteria in most cases, though a yeast-related form also exists, which tends to be itchier and often appears after antibiotic use or heavy sweating. Folliculitis usually resolves on its own with gentle cleansing and by removing the source of irritation.
Fordyce Spots
Fordyce spots are another type of enlarged oil gland, but they differ from Montgomery glands in that they appear as very small (1 to 3 millimeters), pale, slightly raised dots. They’re typically white, yellowish, or skin-colored and are painless. They’re most commonly recognized on the lips or genitals, but can appear on the areola as well. They’re completely harmless and don’t require treatment.
Acne
Pimples can form on the areola just as they do on the face, chest, or back. They result from clogged pores and the same bacteria involved in typical breakouts. Areolar acne tends to show up as isolated red or pus-filled spots, and it usually clears with basic skin hygiene. Avoid applying harsh acne products directly on the nipple area, as the skin there is thinner and more easily irritated.
Signs That Need Medical Attention
Most areolar bumps are benign, but a few specific patterns warrant a visit to a healthcare provider. Paget disease of the breast is a rare form of cancer that affects the nipple and surrounding skin. It often mimics eczema or dermatitis, which is why it can go unrecognized. Key features include persistent itching or tingling, flaking or crusty skin on or around the nipple, a nipple that gradually flattens, and discharge that may be yellowish or bloody. These symptoms don’t come and go with your cycle; they persist and slowly worsen.
Inflammatory breast cancer is another rare but aggressive condition. Rather than a single bump, it changes the texture of a larger area of breast skin, creating a dimpled, pitted appearance often compared to orange peel. This is usually accompanied by rapid swelling, warmth, and tenderness across part or all of the breast. It progresses over days to weeks, not months.
The key distinction: normal Montgomery glands are multiple, symmetrical, painless, and stable. Warning signs include changes that are one-sided, progressing, painful, or accompanied by skin texture changes, nipple discharge, or a new lump beneath the surface.
Caring for the Skin Around Your Nipples
Montgomery glands are self-maintaining by design. The oil they produce is the only moisturizer the areola needs. Using harsh soaps, exfoliants, or alcohol-based products on the area strips away this protective layer and can lead to dryness, cracking, and a higher risk of infection. Warm water during bathing is enough to keep the area clean.
If you’re breastfeeding and notice your glands becoming more prominent, that’s the system working as intended. The increased oil production protects against chafing, and the scent helps your baby nurse. Avoid scrubbing the areola before feeding. After nursing, letting a small amount of breast milk air-dry on the nipple can provide additional protection, since breast milk has natural antimicrobial properties.
For anyone experiencing dryness or mild irritation around the areola, a fragrance-free moisturizer applied gently after bathing is generally safe. Just avoid getting product directly into the gland openings, and again, never squeeze the bumps to try to clear them.