Sore nipples are common, and most of the time the cause is simple: friction, hormones or skin irritation. But because the breast is involved, it is natural to worry. This guide walks through the usual reasons nipples hurt, what tends to help, and the specific signs that mean you should get checked.
Common Causes of Sore Nipples
1. Friction from clothing or exercise
Repeated rubbing from a bra, shirt or sports top is one of the most common causes. Runners know it as “jogger’s nipple”: after a long run the nipples can become raw, cracked or even bleed. It happens to men as well as women.
2. Your menstrual cycle
Rising estrogen and progesterone in the week or two before a period can make the breasts and nipples tender, swollen or sensitive to touch. This is called cyclical breast pain. It usually affects both sides and eases once your period starts. The NHS notes this is the most common type of breast pain.
3. Early pregnancy
Sore, tingling or extra-sensitive nipples can be one of the first signs of pregnancy, sometimes before a missed period. Hormone levels rise quickly and blood flow to the breasts increases. If there is a chance you could be pregnant, a home test taken on or after the day your period is due is the most reliable check.
4. Breastfeeding
Some tenderness in the first days of breastfeeding is common, but ongoing pain, cracks or bleeding usually point to a latch problem. A lactation consultant, midwife or health visitor can often fix this quickly with small changes in positioning.
5. Mastitis
Mastitis is inflammation of breast tissue, most common during breastfeeding. Signs include a red, hot, painful area of the breast, sometimes with fever and flu-like aches. The NHS advises seeing a doctor if symptoms do not improve within 24 hours or you feel unwell, because antibiotics may be needed.
6. Thrush (yeast infection)
A yeast infection of the nipple can cause burning or shooting pain, often during or after feeding, with shiny, flaky or pink skin. It may come with oral thrush in a breastfed baby, so both usually need treatment.
7. Skin conditions and allergies
Eczema and contact dermatitis can affect the nipple and areola, causing itching, dryness, flaking or cracking. Common triggers are new laundry detergents, fabric softeners, soaps, body lotions and some bra materials.
8. Hormonal medicines
Starting or changing birth control pills, hormone replacement therapy or fertility treatment can cause breast and nipple tenderness, which often settles after a few months.
9. Nipple piercings
New piercings are tender for weeks. Increasing pain, swelling, warmth or discharge may mean an infection that needs medical treatment.
10. Nipple vasospasm (Raynaud’s)
Some people notice the nipple turning white, then blue or purple, with sharp throbbing pain, especially after feeding or in the cold. This is caused by blood vessels tightening and is linked to Raynaud’s phenomenon. Keeping warm usually helps, and a doctor can advise if it persists.
Sore nipples are also common during puberty in both boys and girls as the breasts develop. This is normal and settles with time.
How to Relieve Nipple Pain
- Wear a well-fitting bra in a soft, breathable fabric. A professional fitting helps if you are unsure of your size.
- Protect your skin during exercise. Petroleum jelly, an anti-chafe balm or small adhesive covers stop friction on long runs.
- Use a cool compress for swelling and tenderness, or a warm one if you are breastfeeding and feel blocked.
- Moisturize dry or cracked skin with a plain, fragrance-free ointment. For breastfeeding, purified lanolin is commonly used.
- Switch to fragrance-free detergent and soap if you suspect irritation.
- Try an over-the-counter pain reliever such as ibuprofen or paracetamol (acetaminophen) for short-term relief, following the label.
- Track your cycle. If tenderness lines up with your period, that is reassuring, and noting it helps your doctor too.
When to See a Doctor
Most nipple pain is harmless, but these changes should be checked by a doctor, especially if they affect only one side:
- A lump in the breast or armpit
- Bloody or clear discharge that comes out on its own
- A nipple that has recently turned inward
- A scaly, crusty or itchy rash on the nipple that does not clear within two weeks
- Dimpling or puckering of the skin, or skin that looks like orange peel
- Redness, heat and fever, which may mean infection
- Pain that is constant, getting worse, or not linked to your cycle
A one-sided, eczema-like rash that will not heal can rarely be a sign of Paget disease of the breast, an uncommon form of breast cancer. Nipple pain on its own is rarely a sign of cancer, but any lasting change is worth a checkup. Our article on habits linked to breast cancer covers risk factors in more detail.
FAQ
Why do my nipples hurt but I am not pregnant?
The most common reasons are hormonal changes before your period, friction from clothing or exercise, skin irritation and hormonal medicines. If the pain is one-sided, constant or comes with other changes, see a doctor.
Can men get sore nipples?
Yes. Friction from running, skin conditions, some medicines and hormonal changes can all cause nipple pain in men. A lump or discharge in a man should always be checked.
How long does nipple soreness before a period last?
It usually starts a few days to two weeks before your period and eases once bleeding begins.
Is it normal for only one nipple to hurt?
It can be, for example with friction or a piercing. But pain or skin changes on one side that last more than a couple of weeks should be checked by a doctor.
The Bottom Line
Sore nipples are usually caused by friction, hormones, breastfeeding or irritated skin, and simple steps like a better-fitting bra, anti-chafe protection and fragrance-free products often fix the problem. Get checked if the pain is on one side and persistent, or if you notice a lump, discharge, a rash that will not heal or a nipple that has turned inward.
This article is for general information and is not a substitute for advice from your doctor.
Sources
- Cleveland Clinic: Sore Nipples
- NHS: Breast Pain
- NHS: Mastitis
- NHS: Raynaud’s Phenomenon
- National Cancer Institute: Paget Disease of the Breast
Medical disclaimer: This article is for general information only and is not a substitute for advice, diagnosis or treatment from a qualified health professional. If your symptoms are severe, sudden or getting worse, contact a doctor or emergency services.
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