Nipple pain can range from mild tenderness to burning, stinging, itching, or sharp discomfort. It may affect one or both nipples and can occur with otherwise normal breast changes. Common causes include friction, hormonal fluctuations, pregnancy, skin irritation, breastfeeding problems, infection, and, less commonly, an underlying breast condition.
Understanding when the pain occurs and noticing any accompanying changes can help identify a likely trigger. Persistent, worsening, or unexplained symptoms should be assessed by a healthcare professional.
Common causes of nipple pain
Friction and clothing
Repeated rubbing from a bra, shirt, or sports clothing can irritate the sensitive skin of the nipple. Running, cycling, swimming, and other activities may increase friction, particularly when clothing is loose, rough, damp, or poorly fitted.
Soft, breathable fabrics and well-fitting clothing may reduce rubbing. During exercise, supportive clothing or a protective nipple shield may help limit direct friction.
Hormonal changes
Breast and nipple tenderness can occur around menstruation because hormone fluctuations may cause breast swelling and sensitivity. Symptoms often follow a recurring pattern with the menstrual cycle.
Pregnancy can also cause fuller, more sensitive breasts and sore or tender nipples, especially as hormonal and physical changes begin. A properly fitted bra may improve comfort as breast size changes.
Skin irritation, eczema, or dermatitis
Dry, itchy, red, scaly, or irritated skin may point to eczema or contact dermatitis. Potential triggers include fragranced products, harsh soaps, detergents, and some fabrics. Avoiding a suspected irritant and using gentle, unscented skin products may help, although ongoing or severe irritation should be evaluated.
Breastfeeding or pumping
Nipple soreness during breastfeeding may result from frequent sucking, strong suction, or an ineffective latch. Positioning and attachment can make a substantial difference. A lactation consultant or healthcare professional can help assess the latch and suggest adjustments.
Breastfeeding-related pain accompanied by breast redness, warmth, swelling, marked tenderness, or feeling unwell may be associated with mastitis or another infection and requires prompt medical advice.
Infection or piercing complications
Bacterial or fungal infections can cause redness, swelling, tenderness, discharge, or persistent irritation. A nipple piercing may become infected if the piercing or aftercare has caused tissue damage or allowed bacteria to enter. Seek professional assessment rather than trying to treat a suspected infection without guidance.
What you can do for mild discomfort
- Reduce activities or clothing that cause rubbing until the skin settles.
- Wear soft, well-fitting bras and breathable clothing.
- Avoid harsh soaps, fragranced products, and detergents on irritated skin.
- Use a warm or cool compress, depending on which feels more soothing.
- Keep track of when the pain occurs, including its relationship to exercise, menstruation, pregnancy, breastfeeding, or a new product.
- Ask a healthcare professional or pharmacist whether an over-the-counter pain reliever or skin treatment is appropriate for you.
These measures may ease symptoms but do not treat every possible cause. Antifungal medication, antibiotics, or other treatment should be used only when recommended by a qualified clinician.
When to contact a healthcare professional
Arrange an assessment if nipple pain is persistent, recurrent without an obvious explanation, increasing, or not improving with simple changes. Contact a healthcare professional promptly if you notice:
- a new lump or a change in the size, shape, or texture of the breast;
- nipple discharge when you are not breastfeeding;
- new nipple inversion or a persistent change in nipple sensation;
- redness, warmth, swelling, pus, fever, or feeling generally unwell;
- significant skin changes, including a persistent rash, scaling, crusting, or an ulcerated area.
Nipple pain and breast conditions
Most nipple pain is related to irritation, hormonal changes, breastfeeding, or a treatable skin problem. However, persistent nipple changes should not be ignored. Rare breast conditions, including Paget’s disease of the breast, can affect the nipple and may cause ongoing itching, burning, soreness, scaling, or crusting. These symptoms do not necessarily mean cancer, but they do warrant professional evaluation.
A clinician can review your symptoms, examine the breast and nipple, and decide whether further testing or treatment is needed. Keeping a brief record of symptoms and possible triggers can make that discussion more useful.