Breastfeeding can usually continue when a baby has reflux. Reflux happens when milk flows back from the stomach into the food pipe, sometimes spilling from the mouth after a feed. It is common in babies and often improves with age. Feeding-position support, gentle burping, and holding a baby upright after feeds may help. Always place your baby flat on their back for sleep, and seek care for warning signs.
What is infant reflux, and why does it happen?
Infant reflux occurs when milk returns from the stomach into the oesophagus, the tube that carries food to the stomach. Some milk may then come out through the mouth, often during or shortly after breastfeeding. This is sometimes called spitting up or regurgitation.
In young babies, the muscle that helps keep stomach contents in place is still developing. As a result, milk can flow back more easily, particularly when the stomach is full. Reflux is common during the first year of life and usually improves as babies grow. According to the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), most children no longer have reflux symptoms by around 12 to 14 months of age.
Ordinary reflux is different from gastroesophageal reflux disease (GERD). GERD describes reflux that causes repeated, troublesome symptoms or complications. Frequent spitting up alone does not establish that a baby has GERD or needs medication.
Can you continue breastfeeding if your baby has reflux?
Yes. Breastfeeding can usually continue when a baby experiences reflux. Spitting up does not automatically mean breast milk is unsuitable or that breastfeeding is causing a medical problem. If your baby is feeding comfortably overall, gaining weight as expected, and otherwise seems well, small amounts of milk coming back up are often part of normal infancy.
Rather than stopping breastfeeding or changing to formula without a clear reason, consider getting support with feeding technique. The NHS guidance on reflux and breastfeeding recommends checking the baby's breastfeeding position and using practical measures such as regular burping and upright holding after feeds. A midwife, lactation consultant, or other qualified breastfeeding professional can help assess positioning, attachment, and any feeding difficulties.
If your baby repeatedly struggles to feed, seems distressed during feeds, or has difficulty gaining weight, arrange a medical assessment. Continuing breastfeeding is often possible, but the baby may need help with feeding or evaluation for another condition.
How can you ease reflux during breastfeeding?
Simple adjustments may help reduce discomfort and make feeds more manageable. The most useful approach depends on your baby's feeding pattern and what happens during and after nursing.
Check your breastfeeding position
Ask a breastfeeding professional to observe a feed if your baby frequently coughs, gulps, pulls away, or seems unsettled while nursing. They can help you find a position in which your baby can attach comfortably and feed effectively. There is no single position that works best for every baby, so individual guidance is more useful than following a rigid feeding technique.
Keep your baby upright after feeds
When practical, hold your baby upright against your chest for about 20 to 30 minutes after breastfeeding, while remaining awake and supervising them. This may help reduce regurgitation. Avoid putting pressure on your baby's abdomen, and handle them gently when changing clothes or nappies immediately after a feed.
The NHS guidance on reflux in babies also recommends holding babies upright during feeds and burping them regularly. These steps may help, although they will not prevent every episode of spitting up.
Burp your baby gently
Try offering a burping break at a natural pause during breastfeeding or after the feed. Support your baby's head and neck, keep their body comfortably upright, and gently rub or pat their back. Some babies burp easily, while others do not burp after every feed. You do not need to force a burp if your baby remains comfortable.
Continue offering appropriate feeds
Continue breastfeeding according to your baby's usual feeding cues unless a healthcare professional recommends a change. Do not deliberately reduce feeds, delay feeds, or restrict feeding time simply to prevent spit-up. Your baby still needs enough milk for hydration and growth. If you are unsure whether your baby is getting enough milk, ask for an assessment of feeding and weight gain.
What is the safest sleep position for a baby with reflux?
Always place your baby on their back for every sleep, including naps. The sleep surface should remain flat; do not raise the head of the cot or crib, use wedges, or position your baby on their side or stomach to manage reflux.
Although reflux may appear worse when a baby is lying down, inclined or side-sleeping arrangements are not recommended as a solution. After holding your baby upright following a feed, return them to a flat, safe sleep surface on their back. If you feel sleepy while holding or feeding your baby, place them in their safe sleep space rather than risk falling asleep with them in your arms.
Should you change your diet while breastfeeding?
Usually, no dietary change is needed solely because your breastfed baby spits up. Cutting out dairy products, spicy foods, caffeine, or several food groups without a clear reason can make your own diet unnecessarily restrictive. Reflux by itself does not establish that your baby is reacting to something you have eaten.
Some symptoms of reflux can overlap with those of cow's milk protein allergy or another feeding-related problem. If your baby has persistent feeding difficulties, poor growth, blood in their stool, or other concerning symptoms, a healthcare professional can assess whether an allergy or another condition should be considered.
If a clinician suspects cow's milk protein allergy and recommends a dairy-free trial during breastfeeding, ask how to carry it out, how long to continue it, and how to maintain adequate nutrition. Avoid starting a restrictive elimination diet or making several dietary changes at once without guidance.
When should infant reflux be checked by a healthcare professional?
Arrange an appointment with your baby's doctor if reflux is persistent, is getting worse, interferes with feeding, or is causing ongoing distress. A review is also important if your baby is not gaining weight as expected, is losing weight, or develops reflux for the first time after six months of age. Reflux that continues beyond the first birthday also deserves assessment.
Seek urgent medical care if your baby has any of the following warning signs:
- Green or yellow vomit, or vomit containing blood.
- Repeated forceful or projectile vomiting.
- Blood in the stool or a swollen, painful, or tender abdomen.
- Repeated refusal to feed or an inability to keep feeds down.
- Signs of dehydration, such as noticeably fewer wet nappies or a dry mouth.
- Severe, persistent distress or breathing difficulties.
These symptoms may point to a problem that needs prompt evaluation rather than routine management at home. If your baby has difficulty breathing or appears seriously unwell, seek emergency medical help.
How do doctors assess reflux in breastfed babies?
A healthcare professional will usually ask about your baby's symptoms, feeding pattern, medical history, and growth. They may ask how often milk comes back up, whether vomiting is forceful, how your baby behaves during feeds, and whether wet nappies and weight gain appear appropriate. Keeping a short record of feeds, regurgitation, crying, and other symptoms can make this discussion more useful.
According to the NIDDK guidance on diagnosing infant reflux, doctors can often assess reflux by reviewing symptoms and medical history. Tests are not necessary for every baby, but may be considered when symptoms persist, complications are suspected, or another health problem needs to be ruled out.
Does infant reflux require medication?
Most babies with ordinary reflux do not need medicine. A healthcare professional may first recommend appropriate feeding adjustments and observation of the baby's growth and symptoms. If symptoms remain troublesome or complications develop, further assessment may be needed to decide whether treatment is appropriate.
The NIDDK guidance on treating infant reflux explains that doctors may prescribe acid-reducing medicines in selected cases, such as when there is inflammation of the oesophagus or persistent troublesome GERD symptoms. These medicines have potential risks and should only be used in infants when directed by a healthcare professional. Do not give your baby over-the-counter reflux remedies or change prescribed treatment on your own.
For many breastfed babies, the most helpful approach is to continue feeding, make practical adjustments where needed, maintain safe sleep practices, and monitor growth. Seek professional guidance when symptoms are persistent or concerning, rather than assuming every episode of spitting up needs treatment.