Sore nipples and cracks during breastfeeding: causes, care and when to get help

Sore nipples are common at the beginning of breastfeeding, but pain that lasts throughout a feed, becomes worse from day to day, or is accompanied by cracks, bleeding or a change in nipple colour should not be treated as an unavoidable stage. In many cases, the main cause is mechanical: the baby's position, a shallow latch, repeated compression of the nipple or pumping equipment that is not well matched to the breast.

Other causes are possible: a functionally restrictive tongue-tie in some babies, skin conditions, bacterial or viral infection, candidiasis in selected situations, nipple vasospasm, Raynaud phenomenon, pump-related trauma or functional pain. More than one cause can coexist. This is why a cream or ointment alone may not solve the problem if the underlying cause has not been identified.

This guide reviews what is known in 2026: how to recognise pain related to shallow attachment, what a nipple crack actually means, when breastfeeding can continue, when milk expression may be useful, how to use breast pads or a pump without worsening damage, why lanolin is not a miracle treatment, which signs suggest infection or vasospasm, and when to seek skilled breastfeeding support.

The short answer: do you have to tolerate pain while breastfeeding “settles in”?

No. Mild tenderness or brief discomfort as the baby initially attaches can occur during the first days, but significant or persistent pain throughout each feed is not something you should simply wait to disappear. UNICEF UK Baby Friendly and the NHS recommend prompt assessment of positioning and attachment when pain continues.

The first objective is to observe an entire breastfeed: the baby's body position, how widely the mouth opens, the depth of the latch, sucking movements, the shape of the nipple after the feed and the baby's behaviour. This often provides more useful information than looking at the crack alone.

If breastfeeding is temporarily too painful to continue directly, hand expression or pumping may sometimes help maintain milk removal while support is arranged. However, pumping must also be comfortable and correctly set up: a flange that is too small or too large, or suction that is too strong, can cause or perpetuate trauma.

Why can a shallow latch make the nipple hurt?

When a baby takes only the nipple or a small part of the areola into the mouth, the nipple may be compressed against firmer structures in the mouth. Repeated sucking then applies mechanical forces to the skin and deeper tissues. At the end of a feed, the nipple may look flattened, wedge-shaped, pinched or blanched.

The NHS identifies poor positioning and attachment as one of the most common causes of sore nipples. UNICEF UK Baby Friendly also recommends reviewing positioning and attachment first when pain, cracks or nipple damage are present.

The solution is therefore not simply to protect the surface of the skin. The repeated mechanical pressure needs to be reduced at each feed. A skilled professional can observe the baby's mouth, position, tongue movement and the way the breast is taken into the mouth.

Which signs suggest that attachment should be reviewed?

Several signs can point in that direction, although none is a diagnosis on its own: pain that continues beyond the first moments of the feed, a nipple that comes out flattened or distorted, repeated clicking sounds, a baby who repeatedly comes off the breast, a mouth that is not opened widely, cheeks that dimple markedly, or very long feeds with few audible swallows.

By contrast, an effective latch is usually deep, with the baby's mouth open widely, the lips turned outward and sucking becoming slower and deeper as milk flows. The baby should be held close enough that there is no constant pulling on the nipple.

A single picture on the internet cannot always correct the situation because maternal and infant anatomy vary. Direct observation is preferable when pain is genuine or persistent.

What exactly is a nipple crack?

The term “crack” refers to a break or fissure in the surface of the nipple skin. It may be superficial or deeper and can be accompanied by crusting or bleeding. It is not a single disease: it is a lesion that can result from mechanical trauma, irritation, a skin condition or another underlying problem.

Broken skin is also more vulnerable to some infections. The NHS therefore recommends seeking help promptly when nipples are cracked or bleeding.

The goal is to allow healing while correcting the cause. Applying a product without changing a traumatic latch often asks the skin to heal while it is being injured again several times every day.

Can you keep breastfeeding with cracked nipples?

In many situations, yes. A crack does not automatically require breastfeeding to stop. Maintaining milk removal can also help reduce the risk of engorgement. If direct feeding becomes tolerable after the latch is corrected, breastfeeding can usually continue.

When pain is too severe, expressing milk can be a temporary option. The aim is to avoid an abrupt, unwanted weaning and to maintain milk stimulation if you want to continue breastfeeding.

If you need to express temporarily, our article on how often and how long to pump gives general guidance. With a painful lesion, settings and equipment should still be individualised.

Can a breast pump cause nipple cracks?

Yes. The Academy of Breastfeeding Medicine recommends observing a pumping session when persistent pain is being assessed. Flange size, nipple centring, suction strength and duration can all contribute.

Higher suction does not automatically remove more milk. If the nipple rubs strongly against the tunnel, becomes swollen, changes colour or is painful after pumping, the equipment and settings should be reviewed.

Pumps on the market offer different settings, but no pump can guarantee a pain-free experience if the flange does not fit properly. For products currently available from Confort Enceinte, you can compare the breast pump collection for practical features only; if you have pain or tissue damage, seek skilled advice rather than changing machines at random.

Does lanolin heal nipples better than other options?

Purified lanolin is often used to provide a moist healing environment and reduce drying that may cause a fissure to reopen. Some women find it comfortable, but current evidence does not show that it is clearly superior to other simple approaches.

A meta-analysis published in July 2026 compared expressed breast milk with lanolin across four randomised trials involving 711 women. It found no statistically significant difference in nipple cracking or pain. The authors rated the certainty of the evidence as very low because of risk of bias, inconsistency and imprecision.

A reasonable conclusion is that lanolin can be used as a comfort or wound-care aid for some women, but it never replaces correction of mechanical trauma or assessment for another cause.

Is applying expressed breast milk to the nipple proven to help?

Some breastfeeding guidance suggests expressing a little breast milk onto the nipple and allowing it to dry. UNICEF UK Baby Friendly includes this among possible supportive measures when a nipple is cracked. However, the 2026 meta-analysis means we cannot say with confidence that expressed breast milk is better or worse than lanolin.

It should therefore be seen as a simple supportive measure, not a universal treatment. Pain that continues despite improved attachment deserves assessment for another cause.

Should the nipple be washed with soap after every feed?

No. Repeated washing with soap can dry and irritate the skin. The NHS advises avoiding soap on sore nipples. Normal personal hygiene is sufficient in most cases.

If a particular infection is diagnosed, a healthcare professional may give different instructions. Follow those specific directions rather than repeatedly using disinfectants on your own.

Can breast pads help?

They can help absorb leaking milk and keep clothing dry, but they should be changed regularly. Constant moisture may irritate damaged skin. NHS guidance recommends changing pads frequently, particularly when damp.

Choose a comfortable pad and avoid one that sticks to a fissure. The disposable nursing pads sold by Confort Enceinte can be used to manage leaks, but they are not presented as a treatment for nipple cracks or infection.

What kind of bra is best when nipples are sore?

A soft, well-fitting and non-compressive bra may reduce rubbing. The NHS advises comfortable bras and avoiding excessive pressure when breasts or nipples are painful.

The key is that the fabric does not press tightly on a sensitive area and that breast pads can be changed easily if used. A product such as the cotton nursing bra can be chosen for comfort and access to the breast, but it does not have a therapeutic function.

Are silicone nipple shields a good solution?

They can be useful in selected situations, but they should not be used automatically as soon as the nipple hurts. NHS guidance cautions against unassisted use because a nipple shield does not correct the cause of a shallow latch and may affect stimulation or milk transfer.

If a professional considers a shield appropriate, the size should be suitable, milk transfer should be checked and the situation should be reviewed. The objective is to address the underlying problem rather than add a permanent barrier without follow-up.

Can tongue-tie cause nipple cracks?

A restrictive frenulum can, in some babies, limit tongue movement and make attachment less effective. It is one of the possible factors described in guidance and research on nipple pain.

However, seeing a frenulum does not automatically mean it needs to be divided. Many babies have a visible frenulum without functional difficulty. Assessment should focus on function: attachment, tongue movement, milk transfer, growth and maternal pain.

A skilled assessment of feeding and the baby's mouth should come before any decision about frenotomy.

What is nipple vasospasm?

Vasospasm is a temporary constriction of small blood vessels in the nipple. Pain may feel burning, stabbing, throbbing or shooting. The nipple may turn white and then blue or red as blood flow returns. Cold is often a trigger.

The Academy of Breastfeeding Medicine includes vasospasm and Raynaud phenomenon among possible causes of persistent nipple pain. Mechanical compression of the nipple can also contribute to colour changes.

If your nipple regularly turns white after feeds and pain is triggered by cold, mention this during an assessment. Treatment depends on the actual mechanism.

Does burning pain always mean thrush?

No. Historically, many burning nipple pains were attributed to Candida, but current understanding is more nuanced. Burning pain can also occur with vasospasm, skin disease, mechanical injury, bacterial infection or neuropathic pain.

The diagnosis should therefore not be based on the word “burning” alone. The appearance of the skin, nipple shape and colour, symptoms in the baby, clinical context and sometimes microbiological testing may all be relevant.

Unnecessary antifungal treatment can delay the correct diagnosis. Conversely, a confirmed infection should be treated appropriately.

When should a skin condition be considered?

Very red, scaly or itchy skin, particularly when a rash extends beyond the nipple, can suggest eczema, contact dermatitis or another dermatological condition. Fragranced products, some detergents, creams, adhesives and breast pads can irritate sensitive skin.

A skin condition may coexist with mechanical trauma. Treatment depends on the diagnosis and can require medical advice, particularly if medicated creams are being considered.

Which signs may suggest infection?

A fissure that worsens, purulent discharge, marked redness, pain that increases despite improved attachment or unusual lesions need assessment. The Academy of Breastfeeding Medicine notes that cultures may be considered in some situations, including persistent cracks with drainage, mastitis that does not respond to treatment, a rash suggestive of infection or severe pain with few findings on examination.

If pain is accompanied by fever, chills or a red, painful area of the breast, mastitis should also be considered. Our guide to engorgement and mastitis explains signs that need medical review.

Can you breastfeed from a nipple that is bleeding?

A small amount of blood from a crack does not always mean breastfeeding must stop, but the situation should be assessed because bleeding indicates tissue damage. If you have a known blood-borne infection, a specific medical condition or particular treatment, ask for individual advice.

In all cases, the mechanical issue responsible for the fissure should be addressed so that the skin is not repeatedly reopened during feeds.

Why is routinely shortening feeds not always helpful?

A shallow latch can injure a nipple within minutes; an effective latch may allow a longer feed without pain. NHS guidance does not support routinely shortening feeds simply to “rest” the nipples because this does not correct the cause and may reduce breast stimulation.

The goal is not a standard number of minutes but an effective and comfortable feed. If pain is unbearable, temporary expression can be discussed.

Is there one “perfect” breastfeeding position?

No. Cradle hold, rugby hold, side-lying and laid-back breastfeeding can all work depending on the mother and baby. The common principles are that the baby is close and well supported, the head can tip back slightly and attachment is deep enough to avoid pinching the nipple.

Changing position may also shift pressure to a different area of the nipple and improve comfort temporarily, but the new position still needs to support an effective latch.

A cushion can improve comfort for some mothers. The ergonomic nursing pillow currently available from Confort Enceinte can be used as a positioning support, but it does not replace learning how to achieve effective attachment.

What should you look at immediately after a feed?

Look at the shape of the nipple. If it remains rounded and its usual colour, that is generally reassuring. If it is markedly flattened, wedge-shaped, white or shows a compression line, note this and show it to whoever is assessing the feed.

Also observe how the skin changes from one day to the next. A fissure that becomes deeper despite an improved latch suggests that another factor may be involved.

Can pain come from deeper in the breast rather than the nipple?

Yes. Deep breast pain has a different range of possible causes from a superficial nipple fissure. Engorgement, inflammation, mastitis, musculoskeletal pain and neuropathic pain may all be perceived behind or around the nipple.

Describing exactly where the pain is, when it starts, how long it lasts and what makes it worse gives a clinician much more useful information.

What role does mental health play?

Repeated pain at every feed can be exhausting and anxiety-provoking. It may cause dread before feeds and make breastfeeding very difficult to live with. That does not mean the pain is psychological.

The Academy of Breastfeeding Medicine protocol recommends considering emotional wellbeing as part of the assessment when pain persists. A breastfeeding plan should remain compatible with the mother's overall health.

When should you seek help promptly?

Ask for prompt assessment if pain is severe at every feed, nipples are cracked or bleeding, a lesion is not improving after attachment has been corrected, or you see significant redness, unusual discharge, blisters, extensive crusting or painful colour changes.

Also seek medical advice promptly if you have fever, chills, feel unwell, develop a red painful area of the breast, pain suddenly becomes much worse, or the baby is not gaining weight as expected.

An IBCLC lactation consultant, midwife, doctor or paediatric clinician with breastfeeding expertise can observe a feed and investigate both mechanical and medical causes.

FAQ: sore nipples and nipple cracks

Is it normal to have sore nipples during the first few days?

Mild tenderness can occur, but pain that lasts throughout a feed or gets worse should be assessed.

Can a crack heal without stopping breastfeeding?

Yes, particularly when the mechanical cause has been corrected and the lesion is uncomplicated.

Is lanolin essential?

No. It can be useful for comfort, but good evidence does not show that it is essential or clearly superior to expressed breast milk.

Do I have to wash lanolin off before feeding?

For purified lanolin products intended for nipple use, manufacturers may state that removal is unnecessary. Follow the instructions for the specific product.

Is expressed breast milk enough to treat a crack?

It can be used as a simple supportive measure, but it does not correct a shallow latch or treat an infection.

Is a white nipple after feeding normal?

It can indicate compression or vasospasm. If it is painful, have the feed assessed.

Can cold weather make the pain worse?

Yes, particularly in vasospasm or Raynaud phenomenon.

Do I need to change breastfeeding positions at every feed?

No, but changing position can improve comfort in some cases as long as the latch remains deep and effective.

Does a nipple shield protect a crack?

It may alter sensation, but it does not automatically correct the underlying cause. Use should ideally be supported and reviewed.

Can pumping hurt more than direct breastfeeding?

Yes, particularly when flange fit or suction is inappropriate.

How can I tell if the pump flange is too small?

Marked rubbing, pain or compression of the nipple in the tunnel can be clues. A skilled assessment can help select an appropriate size.

Is thrush the most common cause of burning nipple pain?

No. Mechanical causes are common and burning pain alone is not enough to diagnose Candida infection.

Does tongue-tie explain every painful latch?

No. It may be relevant in some babies, but it should be assessed functionally rather than diagnosed from appearance alone.

Can I put disinfectant on a crack?

Not routinely. Antiseptics can irritate damaged skin and should be used only when specifically advised.

Do I have to throw away my nursing bra if I have an infection?

Not usually. Wash it normally and follow any specific hygiene advice given for a diagnosed infection.

Key points

Persistent nipple pain is not a price you have to pay to breastfeed. Mechanical problems are common, but they are not the only cause. A feed should be observed, the nipple examined and other possibilities considered if pain does not improve.

Lanolin, expressed breast milk, breast pads and a comfortable bra may support comfort or wound healing in selected situations, but none replaces correcting a shallow latch or treating a medical cause.

If nipples bleed, pain is severe, a lesion persists or you have signs of mastitis or infection, seek skilled help promptly.

Sources and references

1. NHS. “Sore or cracked nipples when breastfeeding”. View source.
2. NHS Best Start in Life. “Sore nipples”. View source.
3. UNICEF UK Baby Friendly Initiative. “Sore, painful or cracked nipples”, in guidance for meaningful conversations with mothers. View source.
4. Academy of Breastfeeding Medicine. Clinical Protocol #26: “Persistent Pain with Breastfeeding”. View source.
5. Barja Ore J et al. “Efficacy and Safety of Topical Application of Breast Milk Compared with Lanolin for Reducing Nipple Cracks and Pain in Breastfeeding Mothers: A Systematic Review and Meta Analysis of Randomized Clinical Trials”, Breastfeeding Medicine, 2026. PMID 42488966. DOI 10.1177/15568253261470292. View source.
6. “Interventions for the Prevention and Management of Nipple Trauma in Breastfeeding Women: A Systematic Review”, Healthcare, 2026;14(11):1546. PMID 42278799. DOI 10.3390/healthcare14111546. View source.
7. “Interventions for breastfeeding related nipple pain or injury: a meta analysis”, Frontiers in Global Women’s Health, 2025. PMID 40703435. DOI 10.3389/fgwh.2025.1507723. View source.
8. Kent JC et al. “Nipple Pain in Breastfeeding Mothers: Incidence, Causes and Treatments”, International Journal of Environmental Research and Public Health, 2015. PMID 26426034. View source.

General information: this article does not replace observation of a breastfeed or a clinical examination. Persistent pain, a deep fissure, suspected infection or poor infant weight gain requires professional assessment.