Most bumps on or around the nipple are completely normal and don’t need treatment. The small, skin-colored bumps that dot the areola are almost always Montgomery glands, tiny oil-producing glands that every person has. They’re a permanent part of your anatomy, not something to remove. But bumps that are new, painful, or changing in appearance can have other causes, and some of those do need attention.
Montgomery Glands: The Bumps You’re Probably Seeing
The most common “bumps on nipples” are Montgomery glands. These are small sebaceous glands scattered across the areola (the darker skin surrounding the nipple). They release an oily substance that lubricates and protects the delicate skin, maintains an acidic pH that keeps bacteria and yeast in check, and during breastfeeding, produces a scent that helps babies find the nipple and latch.
The number, size, and visibility of these glands varies hugely from person to person. Some people have only a few that are barely noticeable; others have many that are clearly visible, resembling goosebumps. Both extremes are normal. They can become more prominent during pregnancy, breastfeeding, hormonal shifts, or even cold temperatures. Because they serve a protective function, you should not squeeze, pop, or try to remove them. Doing so can introduce bacteria and lead to infection.
When Bumps Signal a Blocked or Infected Gland
Montgomery glands can occasionally become blocked, much like a pore anywhere else on your body. A blocked gland may look like a small whitehead or feel like a firm, slightly tender bump. In most cases, a warm compress applied for 5 to 10 minutes a few times a day is enough to soften the blockage and let the gland drain on its own.
If a blocked gland becomes infected, you’ll notice redness, swelling, warmth, and sometimes a small amount of pus. An infected gland typically needs a topical antibiotic gel or, for more stubborn infections, oral antibiotics. Resist the urge to squeeze it. Squeezing pushes bacteria deeper into the tissue and can turn a minor issue into something that requires more aggressive treatment.
Folliculitis: Inflamed Hair Follicles on the Areola
The areola has hair follicles, and those follicles can become inflamed or infected, just like they can on any other part of your body. Folliculitis on the areola looks like small red or white-tipped bumps, often slightly itchy or tender. It can be triggered by friction from clothing, shaving, or bacteria getting into a follicle.
Mild bacterial folliculitis usually clears with a topical antibiotic lotion or gel. If the infection is caused by yeast rather than bacteria, antifungal treatment is needed instead, since antibiotics won’t help. Severe or recurring cases may require oral antibiotics or anti-inflammatory creams. Avoiding tight, rough fabrics and keeping the area clean and dry helps prevent flare-ups.
Milk Blebs During Breastfeeding
If you’re breastfeeding and notice a small white or yellow blister-like spot on the nipple itself, it’s likely a milk bleb. This is a thin layer of skin that grows over a milk duct opening, trapping milk behind it. Milk blebs can be painful, especially during nursing.
Don’t try to pop or squeeze a bleb yourself. A healthcare provider can safely open it and treat the underlying cause. Some providers recommend the “BAIT” approach: breast rest and an anti-inflammatory like ibuprofen to manage pain while the bleb is addressed. If oversupply is contributing, block feeding (offering only one breast per session for a set period) may be recommended. Avoid applying antifungal products or harsh substances like gentian violet to your nipples, as these cause tissue trauma and scarring without treating the actual problem.
Cysts and Milia
Less commonly, a bump on the areola or nipple can be a small cyst. Milia are tiny, superficial, pearly white dome-shaped bumps, rarely larger than 1 to 2 millimeters. They contain trapped keratin (the protein that makes up your outer skin layer) and are harmless. A provider can remove one with a simple incision if it bothers you cosmetically.
Epidermal inclusion cysts are a step up in size, ranging from a few millimeters to several centimeters. They tend to be softer than milia, grow slowly over time, and can contain foul-smelling material. These are also benign but are typically removed with a minor outpatient procedure under local anesthesia if they’re large or uncomfortable.
Hidradenitis Suppurativa
Recurrent painful bumps, especially ones that form deep under the skin and sometimes drain or leave tunneling scars, may point to hidradenitis suppurativa. This chronic inflammatory condition affects areas where skin rubs together, and the breast and underarm area is one of its most common sites. The bumps tend to flare and partially heal in cycles.
Mild cases can sometimes be managed with topical antibiotics and self-care. More widespread disease may call for oral antibiotics or biologic medications that calm the overactive immune response driving the inflammation. When tunnels or abscesses form under the skin, surgery to open and remove affected tissue becomes an important part of treatment. Hormonal therapies, including certain oral contraceptives, can also help some people reduce flares.
Red Flags That Need Prompt Evaluation
A rare but serious cause of nipple changes is Paget disease of the breast, a form of breast cancer that starts in the nipple. It can easily be mistaken for eczema or dermatitis. The hallmark signs are persistent itching or tingling in the nipple or areola, flaking or crusty skin that doesn’t heal, a nipple that gradually flattens, and discharge that may be yellowish or bloody. Some people also have a lump in the same breast.
Any new lump or bump that persists for more than a month or two deserves a professional evaluation. The same goes for nipple changes that don’t respond to basic care, especially one-sided changes, skin that thickens or crusts over, or any bloody discharge.
Preventing Friction-Related Bumps
If your bumps are related to chafing from exercise or rough clothing, prevention is straightforward. Cotton shirts are one of the worst offenders because they absorb sweat, get heavy, and drag across the skin. Switching to lightweight, moisture-wicking fabrics that pull sweat to the outer surface of the shirt makes a significant difference. A snug-fitting top reduces the back-and-forth movement that causes friction, and a well-fitting sports bra adds another layer of protection.
For runs or long workouts, applying petroleum jelly to the nipples before you start creates a lubricating barrier. Specialized anti-chafe balms and creams made for athletes work similarly. You can also place adhesive bandages or nipple covers directly over the area. Just make sure whatever you use is designed for skin contact, as the wrong adhesive can cause its own irritation.