Is It Normal for Breastfeeding to Hurt ?

Breastfeeding should not hurt

One of the most common things I hear from new mums — especially in those first raw, exhausted days — is some version of this: "Is it supposed to hurt this much? Everyone told me it was natural."

It is a fair question. And it deserves a straight answer.

Breastfeeding should not hurt. Some initial tenderness as your body adjusts in the very early days is not unusual. But ongoing pain — the kind that makes you dread the next feed, that leaves your nipples cracked or bleeding, that wakes you up at night — is not something to push through alone. It is a sign that something needs attention.

How Common Is Breastfeeding Pain ?

More common than many people realise, which is part of why so many mothers assume it must be normal.

Among those who stop breastfeeding in the first month, research has found that 29% cited pain, and over a third specifically identified sore, cracked, or bleeding nipples as an important reason for stopping. As many as one in five women report persistent pain at two months postpartum. Clinical TreeSAGE Publications

In a study of over 450 breastfeeding mothers, pain was identified as the single most common breastfeeding problem reported. Lippincott Williams & Wilkins

This matters — not just for feeding, but for how mothers feel overall. Research has found a relationship between breastfeeding-associated pain and postpartum depression, which is something I am always mindful of in my work with families. Clinical Tree

The good news is that in most cases, the cause of pain can be identified and addressed. You do not have to just get through it.

The Most Common Reason Breastfeeding Hurts: Latch

The most likely reason breastfeeding hurts is when a baby attaches to the nipple without getting a deep mouthful of the surrounding breast tissue — what is often called a shallow latch. In a shallow latch, the nipple tends to get pinched between the baby's tongue and the roof of their mouth, which is very painful. The nipple may come out of the baby's mouth looking misshapen, and may even appear white for a moment, as if the blood has been squeezed out.

Research supports this — nipple pain is most commonly understood as a symptom of inflammation caused by repetitive mechanical stretching and pressure on the nipple tissue, rather than simply poor attachment in isolation. In other words, what is happening inside the baby's mouth — the forces being applied to your nipple — matters as much as what things look like from the outside. PubMed Central

This is why positioning and how your baby is held can make a significant difference. And it is why a visual check of latch by a health professional does not always tell the full story.

But My Latch Looks Fine — Why Does It Still Hurt ?

Simply looking at a baby's latch does not tell the full story about what is happening to the nipple inside the baby's mouth. If breastfeeding hurts, there is still something wrong.

There are a number of other causes worth knowing about.

Tongue function and tongue tie

If the membrane under a baby's tongue is very short or tight, it can sometimes prevent the tongue from moving properly — and in some cases, this can be a cause of painful breastfeeding even with very careful positioning.

Tongue tie assessment is part of what I do in clinic. If there is a concern about your baby's tongue function, I will talk you through what I am seeing and what your options are.

Nipple vasospasm

Vasospasm occurs when the tiny blood vessels in the nipple contract and narrow. This can be triggered by a shallow latch but also by cold temperatures or stress. When the baby lets go, the nipple may look white where blood has been squeezed out, and as circulation returns, it can cause a deep throbbing or burning sensation.

This is frequently missed, or confused with other causes of pain — so if you notice pain after feeds rather than only during them, it is worth mentioning to a lactation consultant.

Birth-related tension

Any tension or compression from a baby's birth may affect the nerves and muscles involved in sucking and swallowing, and affect breastfeeding comfort. Forceps, ventouse, or caesarean deliveries are among the most common causes, though even in an intervention-free birth, physical issues can arise depending on how a baby was positioned in the womb.

Fast let-down or oversupply

If a mother has a very fast flow, a baby can learn to pinch the nipple in order to slow the flow down — which causes pain. This is something a lactation consultant can help you to work with.

Other causes

Nipple-related injuries can range from soreness through to cracking and more significant damage — and different causes may need different approaches. Other possibilities include blocked nipple pores (sometimes called milk blebs), skin conditions such as eczema or dermatitis, nipple infection, and poorly fitted breast pump flanges if you are pumping alongside feeding. Deep breast pain can also result from engorgement, blocked ducts, or mastitis — all of which need prompt attention. MAG Online Librarybreastfeeding

What About Thrush ?

Thrush (a fungal infection) has traditionally been blamed for deep breast pain and burning. It is worth knowing that this has become a contested area in lactation research. Thinking on the role of fungal infection in causing nipple pain has shifted — it is now considered one of the least likely causes, and many pharmaceutical treatments for it have been recommended without strong evidence of benefit. PubMed Central

This does not mean infection is never a factor, but it does mean that if you have been told your pain is "probably thrush" without a thorough assessment of latch and positioning, it is worth getting a second opinion.

Pain That Starts After Months of Comfortable Feeding

Pain is not only a concern in the early days. Sometimes nipples begin to feel sore unexpectedly after months of pain-free feeding. This can happen due to changes in positioning as a baby grows, teething, the return of periods, pregnancy, or the introduction of solid foods.

If something has shifted and feeding has become uncomfortable again, please do not assume it is just something you have to live with. It is worth checking out.

When Should You Seek Help ?

While some initial discomfort with early latch may be considered physiological, pain severe enough to cause premature weaning should not be accepted — and the mother and baby should be evaluated by a lactation specialist. Clinical Tree

The sooner you get support, the easier it generally is to sort out. Without timely help, pain during feeding can quickly lead to cracked or damaged nipples, which then become more vulnerable to infection. A poor latch can also reduce your milk supply and affect your baby's weight gain.

Getting hands-on support from an IBCLC — someone trained specifically in infant feeding and lactation — gives you the best chance of getting to the root cause rather than just managing the symptoms.

I Can Help

If breastfeeding is hurting, you do not have to figure it out alone. Support is available in clinic, at home across North Kerry, and online nationwide. Book a Breastfeeding Consultation or book a free introductory call to talk through what is going on.