Breastfeeding and chestfeeding are described everywhere as natural, but natural does not mean automatic or easy. For many parents, establishing feeding in the first days and weeks involves pain, uncertainty, and a level of difficulty that no one quite prepared them for. If you are finding it hard, you are not doing it wrong — you are doing something that has a significant learning curve for both parent and baby, at a time when you are sleep-deprived and recovering from birth. This guide gives you the foundations: how milk production works, what a good latch looks and feels like, the most common challenges and what actually helps, and how to access good support before you reach crisis point.

How Milk Production Works

Understanding the mechanics of milk production makes many feeding challenges make much more sense — and removes the anxiety that comes from not knowing why something is happening.

Milk production works on a supply-and-demand basis. The more milk is removed from the breast or chest — through feeding or pumping — the more is produced. In the first days after birth, the milk is colostrum: thick, golden, and produced in small volumes that match newborn stomach capacity precisely. Around day 2–4, milk “”comes in”” — transitioning from colostrum to mature milk, usually accompanied by noticeable breast fullness.

The hormone prolactin drives milk production; oxytocin drives the let-down reflex (the release of milk during feeding). Stress, pain, and exhaustion can inhibit oxytocin, which is why a tense, painful feed often produces less flow than a relaxed one. This is not a supply failure — it is a physiological response that frequently improves when the feeding environment becomes more comfortable.

Latch: The Foundation of Comfortable Feeding

Most breastfeeding and chestfeeding pain is latch-related — and most latch problems are fixable with skilled support. A shallow latch (where the baby takes primarily the nipple rather than a significant portion of the areola) causes pain, reduces milk transfer, and slows supply development.

Signs of a good latch

• The baby’s mouth is wide open, taking in both the nipple and a significant portion of the areola — more areola below the nipple than above
• The baby’s chin is pressed into the breast or chest; their nose may lightly touch or be slightly away from the surface
• Feeding is not painful beyond the first few seconds of latch (some initial sensitivity is common, particularly in the early weeks)
• You can hear or see swallowing, particularly as milk flow increases
• The baby’s cheeks are full and rounded, not sucked in

If latching is painful

Sharp, persistent nipple pain throughout a feed — or between feeds — is a signal worth acting on. Nipple damage (cracking, bleeding, blistering) is not a normal part of breastfeeding; it indicates a latch that needs improving. Contact a lactation consultant or specialist breastfeeding midwife early — this is specifically what they are trained for, and skilled support can transform a painful feeding experience into a manageable one.

Establishing Supply: The Critical First Weeks

The period from birth to around 6–8 weeks is the most important window for establishing milk supply. During this time, frequent, effective milk removal — ideally 8–12 times in 24 hours — sets the baseline supply level that subsequent feeding will maintain.

Common practices that inadvertently undermine supply during this window include: supplementing with formula without also maintaining feeding or pumping frequency; introducing a dummy before feeding is well established (which reduces sucking time at the breast); and following a fixed schedule rather than feeding on demand. None of these are irreversible — supply can often be rebuilt — but avoiding them in the early weeks is significantly easier than rebuilding supply later.

Common Challenges and What Helps

Low milk supply

True low supply (where milk production is insufficient regardless of feeding frequency) is less common than perceived low supply — where parents believe supply is low, often because their baby is unsettled or feeding very frequently. True indicators of low supply include: inadequate weight gain, consistently fewer than 6 wet nappies in 24 hours after day five, and a baby who is not settled for any period between feeds. If supply is genuinely low, increasing feeding frequency and/or pumping after feeds, alongside a review by a lactation consultant, is the most evidence-supported approach.

Engorgement

Engorgement — when breasts become very full, hard, and painful, typically when milk first comes in — is usually temporary. Feeding frequently (or pumping if the baby cannot latch onto a very full breast), applying warmth before feeds and cold after, and gentle breast massage can help. Persistent engorgement that is not resolving with feeding should be assessed to rule out mastitis.

Mastitis

Mastitis is an inflammatory condition of breast tissue — often involving infection — that causes localised pain, warmth, redness, and flu-like symptoms (fever, aching). It requires medical treatment, usually antibiotics. Continuing to feed or pump from the affected side is recommended (it does not harm the baby and helps clear the blockage). Seek GP review promptly if you develop mastitis symptoms.

Nipple pain beyond the first two weeks

If nipple pain persists beyond two weeks despite latch improvement, it is worth exploring other causes: a shallow latch, tongue-tie in the baby (where a tight frenulum restricts tongue movement), thrush (a fungal infection that causes burning pain), or Raynaud’s phenomenon of the nipple. A lactation consultant can assess and refer appropriately.

“”Breastfeeding support should be proactive, not reactive. By the time a parent reaches out for help, they have often already been struggling for days. Getting skilled support in the first 48–72 hours prevents the majority of early feeding crises.””

— Suzanne Barber, IBCLC (International Board Certified Lactation Consultant) and infant feeding specialist. Barber’s clinical experience spans hospital and community settings, and her consistent observation — that early, skilled support prevents most early breastfeeding breakdowns — is the principle that most strongly informs the advice in this guide.

For specific guides on managing tongue-tie, building supply, pumping and expressing, and feeding in public, explore our full Breastfeeding and Chestfeeding guide collection in the Feeding and Nutrition section.

Frequently Asked Questions

How do I know if my baby is getting enough milk?

The most reliable indicators are: weight gain (your midwife and health visitor track this — most babies regain their birth weight by two weeks and continue gaining steadily); adequate wet nappies (6+ in 24 hours from day five onwards); and a baby who has periods of alertness and settled behaviour between feeds. A baby who is consistently unsettled, not gaining weight, or producing very few wet nappies should be assessed promptly.

Is it normal for breastfeeding to hurt?

Some nipple sensitivity in the first week is common as nipples adjust. Pain that is sharp, persistent throughout feeds, or involves nipple damage is not a normal part of breastfeeding — it is a signal that something can be improved, most commonly the latch. Reach for skilled support rather than pushing through pain; the sooner latch issues are addressed, the easier they are to correct.

Can I breastfeed if I have had breast surgery?

Many people who have had breast surgery, including augmentation or reduction, are able to breastfeed or chestfeed. The extent to which surgery affects supply depends on the type of procedure, how it was performed, and which structures were affected. A lactation consultant with experience supporting post-surgical feeding can give you a much more tailored assessment than any general guide can.

How long should I breastfeed for?

The World Health Organisation recommends exclusive breastfeeding for six months and continued breastfeeding alongside complementary foods for two years and beyond. UK guidance aligns broadly with this. The right duration is ultimately the one that works for your family — feeding for three months is valuable; feeding for three years is also valid. Neither choice requires justification.

What happens if I need to stop breastfeeding earlier than planned?

Stopping breastfeeding before you planned to — whether due to difficulty, health reasons, or a change in circumstances — can bring complex feelings for some parents. Those feelings are valid and do not need to be minimised. If you need to stop feeding, doing so gradually (reducing one feed at a time over days or weeks) is most comfortable physically. Formula feeding fully supports healthy infant growth and development. Whatever the reason for stopping, it is not a reflection of your commitment to your baby.

Key Takeaways

• Milk production works on supply-and-demand — frequent, effective milk removal in the first 6–8 weeks sets the baseline supply.
• Most breastfeeding pain is latch-related and is fixable — persistent pain is a signal to seek skilled support, not to push through.
• Perceived low supply is more common than true low supply; adequate weight gain and wet nappies are the most reliable indicators of sufficient milk intake.
• Mastitis requires prompt medical treatment — continuing to feed or pump from the affected side is recommended alongside treatment.
• Early, proactive support from a lactation consultant or specialist midwife prevents the majority of early feeding difficulties from becoming feeding breakdowns.
• There is no single right duration for breastfeeding — the right duration is the one that works for your family.

Breastfeeding and chestfeeding can be one of the most connecting and sustaining experiences of early parenthood — and one of the most physically and emotionally demanding. Both can be true at the same time. If you are finding it harder than you expected, that is the norm, not the exception. The most important thing you can do is reach for skilled support early — not when you are at crisis point, but at the first sign that something is not working. You deserve support, not just encouragement.