Infant Feeding Problems: Why a Baby Feeds Poorly

What normal feeding looks like

Knowing the usual pattern helps you judge whether there is a problem:

• Newborns feed 8 to 12 times in 24 hours if breastfed, or every 2 to 3 hours if formula fed.
• Formula-fed babies typically take about 30 to 60 ml (1 to 2 oz) per feed in the first days, rising to around 90 to 120 ml (3 to 4 oz) by the end of the first month.
• Babies lose up to 7 to 10% of birth weight in the first days, and should be back to birth weight by 10 to 14 days.
• After day 5, expect 6 or more wet diapers a day and regular yellow stools in breastfed babies.
• Feeds usually take 10 to 40 minutes. Consistently much longer feeds suggest a problem.

Common infant feeding problems

Breastfeeding difficulties

• Poor latch: causes nipple pain, clicking sounds, short feeds and an unsettled baby. A lactation consultant can usually correct positioning quickly.
• Low milk supply: often linked to infrequent feeding, a poor latch, supplementation or some medical conditions.
• Oversupply or a fast letdown: the baby gulps, coughs, pulls off and may be gassy.
• Nipple pain, engorgement and mastitis in the parent.

See breastfeeding problems.

Reflux and spitting up

Most babies spit up because the valve at the top of the stomach is immature. It peaks around 4 months and usually resolves by 12 months. Reflux becomes a disease (GERD) when it causes poor weight gain, feeding refusal, persistent crying with feeds or breathing problems. See infant spitting up.

Overfeeding and bottle flow

Fast-flow nipples and large bottles can lead to gulping, discomfort and vomiting. Paced bottle feeding (holding the bottle horizontally and pausing often) helps babies regulate intake.

Tongue-tie

A tight band under the tongue can limit movement, making latching painful and feeds inefficient. A simple procedure (frenotomy) may help when tongue-tie clearly causes feeding problems.

Cow's milk protein allergy

Milk protein allergy can cause vomiting, diarrhea, mucus or blood in stool, eczema, poor weight gain and distress with feeds. Breastfeeding parents may be advised to cut out dairy. Formula-fed babies are switched to an extensively hydrolyzed formula.

Thrush

Oral thrush (white patches inside the cheeks and on the tongue) can make sucking painful. It is treated with antifungal medicine for the baby, and the parent's nipples if breastfeeding.

Prematurity

Babies born before about 34 to 36 weeks often lack the coordinated suck-swallow-breathe pattern, tire quickly and may need tube feeding at first.

Serious causes of poor feeding

• Infection: sepsis, meningitis, urinary tract infection or RSV. Poor feeding is often the first sign of serious illness in young babies.
• Pyloric stenosis: thickening of the stomach outlet, causing projectile vomiting after feeds in babies aged 2 to 8 weeks, who remain hungry.
• Neonatal jaundice: jaundiced babies are often sleepy and feed poorly, which worsens jaundice.
• Heart disease: sweating, fast breathing and tiring during feeds.
• Cleft lip and palate: makes sealing around a nipple difficult. Special bottles help.
• Neurological and muscle conditions: low muscle tone, cerebral palsy and genetic syndromes affect sucking and swallowing.
• Swallowing problems (dysphagia): coughing, wet breathing or repeated chest infections suggest milk entering the airway.
• Metabolic disorders, rarely.

How doctors assess feeding problems

A pediatrician will weigh the baby and plot weight on a growth chart, ask about feeding frequency, volume, diapers, vomiting and stools, and observe a feed. They examine the mouth, palate, tongue, heart, breathing and muscle tone.

Further tests are guided by findings: urine and blood tests for infection or jaundice, an ultrasound for pyloric stenosis, a swallow study (videofluoroscopy) for suspected aspiration, and referral to a feeding team, speech and language therapist or lactation consultant.

What helps

• Get breastfeeding help early. A lactation consultant can fix latch, positioning and supply issues.
• Feed on cue: rooting, hand-to-mouth and lip smacking come before crying.
• Keep the baby upright during and for 20 to 30 minutes after feeds if they spit up.
• Burp midway and after feeds.
• Try paced bottle feeding and a slower-flow nipple.
• Do not add cereal to bottles unless a doctor advises it.
• Do not switch formulas repeatedly without advice. Frequent changes rarely help.
• Never give honey to babies under 12 months, and never prop bottles.

Frequently asked questions

Why is my baby not feeding well?

Common reasons include a poor latch, low milk supply, a fast milk flow, reflux, tiredness, a blocked nose, thrush or tongue-tie. A sudden change in feeding, especially with sleepiness, fever or fewer wet diapers, can mean illness and should be checked by a doctor the same day.

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

Signs include 6 or more wet diapers a day after the first week, regular stools, a baby who seems content after most feeds, and steady weight gain with return to birth weight by about 2 weeks. Your pediatrician will track weight at checkups.

When should I worry about a baby refusing to feed?

Seek urgent care if a baby refuses most feeds for 6 to 8 hours, has fewer than 4 wet diapers in a day, has a fever under 3 months of age, vomits green fluid, or is unusually sleepy, floppy or breathing hard.

Why does my baby choke or cough during feeds?

Often the milk flow is too fast, from a strong letdown or a fast bottle nipple. Try a different position, paced feeding or a slower nipple. Frequent choking, wet-sounding breathing or chest infections can signal a swallowing problem and should be assessed.

Can reflux cause feeding problems?

Yes. Painful reflux can make babies arch, cry and pull away during feeds, and some refuse feeds. Most spitting up is harmless, but reflux with poor weight gain, persistent feeding refusal or breathing problems needs medical review.