Common Baby Feeding Problems and How to Solve Them

Feeding a baby should be one of the most natural things in the world, yet nearly every parent encounters challenges at some point during the first year. From the newborn who spits up after every feeding to the 10-month-old who clamps her mouth shut at the sight of a spoon, feeding difficulties are incredibly common — whether you are breastfeeding or formula feeding and can be a significant source of stress and worry.

As a pediatrician, I want parents to know two things: first, most feeding problems are manageable with the right approach, and second, you should never hesitate to bring concerns to your doctor. This guide covers the most common feeding problems, what causes them, and when they cross the line from normal variation into territory that needs medical attention.

Spitting Up vs. Reflux: Understanding the Difference

Almost all babies spit up. The question is whether it is a laundry problem or a medical problem.

Normal Spitting Up (GER - Gastroesophageal Reflux)

GER is the effortless regurgitation of stomach contents. It happens because the lower esophageal sphincter — the muscle valve between the esophagus and stomach — is immature in infants.

Characteristics of normal spitting up:

• Baby spits up small amounts during or after feedings
• Baby is otherwise happy, growing well, and feeding comfortably
• No signs of pain, arching, or distress
• Typically peaks around 4 months and resolves by 12-18 months
• Occurs in approximately 50% of infants under 3 months

What helps:

• Keep baby upright for 20-30 minutes after feeding
• Smaller, more frequent feedings
• Burp the baby frequently during feedings — see also our baby feeding schedule for age-appropriate feeding amounts
• Avoid tight diapers or waistbands that put pressure on the abdomen
• Avoid vigorous play or tummy time immediately after eating

Pathological Reflux (GERD - Gastroesophageal Reflux Disease)

GERD is when reflux causes complications or significant symptoms that affect the baby’s quality of life, growth, or health.

Warning signs that suggest GERD rather than normal GER:

• Forceful or projectile vomiting
• Refusing to eat or pulling away from the breast or bottle with signs of pain
• Arching the back during or after feedings
• Poor weight gain or weight loss
• Chronic cough or wheezing
• Blood or green bile in the spit-up
• Irritability during and after feedings (not just general fussiness)
• Feeding aversion — the baby becomes distressed at the sight of the bottle

Medical management of GERD may include:

• Thickening feeds (under medical guidance)
• Changing formula (for example, to a hydrolyzed protein formula if milk protein allergy is suspected)
• Positioning strategies
• In some cases, acid-suppressing medication (H2 blockers or proton pump inhibitors)
• Rarely, surgical intervention

When to see your doctor: If your baby shows any of the warning signs above, loses weight, or you are concerned about the severity of spitting up, schedule an appointment. The distinction between GER and GERD should always be made by a healthcare provider.

Colic and Feeding

Colic is defined as crying for more than 3 hours per day, more than 3 days per week, for more than 3 weeks in an otherwise healthy infant. It typically begins around 2-3 weeks of age and resolves by 3-4 months.

How Colic Affects Feeding

• Colicky babies may seem hungry but then pull off the breast or bottle and cry
• Parents may overfeed in an attempt to soothe the baby, leading to more spit-up and discomfort
• Gas from excessive crying can further complicate feedings
• Nighttime feedings may be particularly difficult

Strategies for Feeding a Colicky Baby

• Feed in a calm, quiet environment to reduce overstimulation
• Try smaller, more frequent feedings to avoid overloading the stomach
• Ensure good latch (breastfeeding) or proper bottle angle to minimize air swallowing
• Burp frequently — after every 1-2 ounces with a bottle, or when switching breasts
• Try paced bottle feeding if bottle feeding to reduce gulping
• Consider a probiotic. Lactobacillus reuteri DSM 17938 has evidence supporting its use for colic in breastfed infants. Discuss with your pediatrician before starting any supplement
• For breastfeeding mothers: A trial elimination of cow’s milk protein from the mother’s diet may help in some cases, but should be done under medical guidance

What Colic Is Not

Colic is not caused by bad parenting. It is not a sign that your milk is “bad” or that you are doing something wrong. It is a developmental phase that resolves on its own. If you are struggling, reach out to your pediatrician and your support network.

Nipple Confusion and Flow Preference

The term “nipple confusion” describes a baby who has difficulty switching between breastfeeding and bottle feeding. Many lactation experts prefer the term flow preference, which more accurately describes what happens.

What Is Actually Happening

• Breast and bottle require different oral mechanics. The breast requires active suction, while many bottle nipples deliver milk with minimal effort
• Babies may develop a preference for whichever method delivers milk more easily and quickly
• This is not confusion so much as the baby choosing the path of least resistance

Signs of Flow Preference

• Baby becomes frustrated or impatient at the breast after taking bottles
• Baby seems to “forget” how to latch properly
• Baby refuses the breast but accepts the bottle eagerly
• Baby is latching shallowly, similar to how they latch on a bottle nipple

Prevention and Solutions

• Delay bottle introduction until breastfeeding is well established (3-4 weeks)
• Use the slowest flow nipple available to make the bottle more similar to breast effort
• Practice paced bottle feeding so the baby has to work for the milk
• Offer the breast before the bottle when the baby is calm but hungry
• Have someone other than the breastfeeding parent give the bottle
• If flow preference has developed, increase breastfeeding frequency and reduce bottle feedings temporarily. Use cup feeding or syringe feeding as alternatives if needed
• Consult a lactation consultant for hands-on assessment and personalized strategies

Tongue Tie (Ankyloglossia)

Tongue tie occurs when the frenulum — the thin band of tissue connecting the underside of the tongue to the floor of the mouth — is unusually short, thick, or tight, restricting the tongue’s range of motion.

How Tongue Tie Affects Feeding

• Difficulty latching to the breast (shallow or painful latch)
• Clicking sounds during feeding
• Slipping off the breast or bottle repeatedly
• Prolonged feedings with poor milk transfer
• Excessive gas from poor seal leading to air swallowing
• Poor weight gain in the baby
• Painful breastfeeding and damaged nipples for the mother
• Decreased milk supply due to inefficient milk removal

Diagnosis and Treatment

• Diagnosis is made by physical examination by a pediatrician, lactation consultant, or pediatric ENT specialist
• Classification ranges from Class I (anterior, more obvious) to Class IV (posterior, less visible but can still affect feeding)
• Treatment options:
  • Conservative management: Lactation support, positioning changes, and monitoring. Mild tongue ties may not require intervention
  • Frenotomy: A quick procedure where the frenulum is clipped. It is usually done in the office, takes seconds, and has minimal bleeding. Often provides immediate improvement in latch
  • Frenuloplasty: A more involved surgical procedure for thicker frenulums, sometimes performed under general anesthesia
• Post-procedure care: Stretching exercises and wound care as directed by the provider, plus follow-up with a lactation consultant to retrain feeding patterns

Important Note

Tongue tie has received significant media attention, and there is some debate in the medical community about overdiagnosis and unnecessary procedures. Not all tongue ties cause feeding problems, and a diagnosis of tongue tie alone is not an indication for treatment. The decision to treat should be based on functional assessment — is the tongue tie actually causing feeding difficulties?

Lip Tie

Lip tie is a similar condition involving the frenulum that connects the upper lip to the gum. It is less well-studied than tongue tie.

How Lip Tie Affects Feeding

• Difficulty flanging (curling) the upper lip outward for a proper latch
• Shallow latch leading to nipple pain
• Clicking during feedings
• Excessive air intake
• Often co-occurs with tongue tie

Treatment

• Many lip ties improve on their own as the baby grows
• Treatment is considered only when the lip tie is clearly causing functional feeding problems
• Revision procedures are similar to tongue tie treatment
• Always seek evaluation from a provider experienced with oral ties

Slow Weight Gain

When a baby is not gaining weight at the expected rate, it is understandably alarming for parents. Understanding what is normal and what warrants concern is important.

Normal Weight Gain Patterns

• Babies typically lose 5-7% of birth weight in the first few days (up to 10% can be normal)
• Birth weight should be regained by 10-14 days of age
• 0-4 months: Gain approximately 5-7 oz (150-200 g) per week
• 4-6 months: Gain approximately 4-5 oz (110-140 g) per week
• 6-12 months: Gain approximately 2-4 oz (60-110 g) per week
• Most babies double birth weight by 4-5 months and triple it by 12 months

Common Causes of Slow Weight Gain

When to See Your Doctor

• Weight loss exceeding 10% of birth weight
• Failure to regain birth weight by 2 weeks
• Consistent crossing of growth curve percentile lines downward
• Fewer than 6 wet diapers per day after the first week
• Baby is lethargic, difficult to wake for feedings, or feeding for very short periods

Signs of Overfeeding

While underfeeding gets more attention, overfeeding can also be a concern, particularly with bottle-fed babies.

Signs Your Baby May Be Overfed

• Excessive spitting up or vomiting after feedings
• Gassiness and abdominal discomfort
• Frequent loose, watery stools
• Rapid weight gain (consistently above the 95th percentile with accelerating trajectory)
• Baby seems uncomfortable or fussy after finishing a bottle

How to Prevent Overfeeding

• Practice paced bottle feeding to let the baby control the pace
• Watch for fullness cues and stop feeding when the baby signals they are done
• Do not force the baby to finish a bottle. The amount left over is not waste — it is the baby self-regulating
• Do not add cereal to a bottle unless specifically directed by your pediatrician for a medical reason
• Avoid using feeding to soothe for every cry. Not every fuss is hunger — try other comfort measures first
• Follow appropriate formula amounts for age rather than always increasing bottle size

Constipation When Starting Solids

Many babies experience constipation when transitioning to solid foods, which is a common source of parental concern.

Normal vs. Concerning Bowel Patterns

• Breastfed babies may have several bowel movements per day or go several days between movements — both can be normal
• Formula-fed babies typically have 1-2 bowel movements per day
• When starting solids, stool frequency and consistency often change
• Constipation is defined by hard, pellet-like stools that are difficult or painful to pass, not by frequency alone

Foods That May Contribute to Constipation

• Rice cereal (try oat or barley cereal instead)
• Bananas (especially unripe)
• Applesauce
• White bread and pasta
• Cheese and excessive dairy

Foods That Help Relieve Constipation

• P fruits: Prunes, pears, peaches, plums
• High-fiber vegetables: peas, broccoli, sweet potatoes
• Oat and barley cereal (instead of rice)
• Adequate water with meals (for babies over 6 months)

When to See Your Doctor About Constipation

• No bowel movement for 5+ days in a formula-fed or solids-eating baby
• Bloody stools
• Severe straining with visible pain
• Abdominal distension or hardness
• Constipation accompanied by vomiting

Food Refusal and Picky Eating

Food refusal is developmentally normal and nearly universal, but it can test every parent’s patience.

Why Babies Refuse Food

• Neophobia (fear of new foods): This is a normal developmental response that typically emerges around 12-18 months but can start earlier
• Texture sensitivity: Some babies gag or refuse foods with unfamiliar textures
• Autonomy and control: Around 9-12 months, babies begin asserting independence, and food is one of the few things they can control
• Teething pain or illness: Temporary food refusal during teething or illness is common and not a long-term concern
• Pressure: Pushing, coaxing, or forcing food often backfires and increases resistance

Strategies for Food Refusal

• Division of responsibility: The parent decides what, when, and where food is offered. The baby decides whether and how much to eat (Ellyn Satter’s model)
• Repeated exposure: Research shows it may take 10-15 exposures to a new food before a baby accepts it. Keep offering without pressure
• Model eating: Eat the same foods with your baby. Babies learn by watching
• Offer variety at every meal — something familiar alongside something new
• Allow mess. Playing with food is a form of sensory exploration that builds comfort
• Keep portions small. A mountain of food on the tray can be overwhelming
• Stay calm and neutral. Do not celebrate when the baby eats or show frustration when they refuse
• Consider food chaining: Introduce new foods that are similar to accepted foods (for example, if the baby likes sweet potato, try butternut squash)

When Food Refusal Is a Red Flag

• Refusing all foods or entire food groups for more than 2 weeks
• Weight loss or failure to gain weight
• Gagging, choking, or vomiting with most textures
• Extreme distress at mealtimes
• Accepting only 5 or fewer foods total
• These signs may indicate a feeding disorder or sensory processing difficulty and warrant evaluation by a pediatric feeding specialist

When to See a Doctor: Summary Guide

Trust your instincts. If something feels wrong, it is always better to get it checked. No pediatrician will fault you for erring on the side of caution.

Frequently Asked Questions

How do I know if my baby has a milk protein allergy vs. just normal fussiness?

Cow’s milk protein allergy (CMPA) affects about 2-3% of infants. Unlike normal fussiness, CMPA typically involves multiple symptoms: excessive crying during or after feedings, bloody or mucousy stools, skin rashes or eczema, vomiting, and sometimes respiratory symptoms. Symptoms usually appear within the first few weeks of formula feeding or within the breastfed baby’s first months if the mother consumes dairy. If you suspect CMPA, consult your pediatrician. Diagnosis typically involves an elimination diet trial followed by a supervised reintroduction.

My baby was eating well and suddenly refuses the bottle. What happened?

Sudden bottle refusal can have several causes. Teething pain can make sucking uncomfortable, ear infections can cause pain when swallowing, and illness can decrease appetite. Some babies go through a developmental distraction phase around 4-5 months where they are too interested in the world to eat. Try feeding in a quiet, dimly lit room. If refusal persists for more than 24 hours with signs of illness or dehydration (fewer than 6 wet diapers per day), contact your pediatrician.

Is it normal for my baby to gag when starting solid foods?

Yes, gagging is a normal protective reflex and is different from choking. Gagging involves a retching motion that pushes food forward in the mouth — the baby may cough, sputter, or even vomit a little, but they can still breathe. Choking, on the other hand, involves a blocked airway, and the baby may be silent, turn red or blue, and appear unable to breathe. Gagging decreases as the baby learns to manage food in their mouth. If gagging is severe or happens with every texture, consult your pediatrician to rule out oral motor issues.

Should I stop breastfeeding if my baby has reflux?

No. The AAP recommends continuing breastfeeding for babies with reflux. Breast milk is easier to digest than formula, and breastfed babies tend to have less severe reflux. If your breastfed baby has significant reflux, your pediatrician may suggest that you eliminate dairy and soy from your diet for a 2-4 week trial to rule out milk protein sensitivity. Switching to formula is rarely necessary and should only be done on medical advice.

My baby only wants to eat purees and rejects any textured food. Should I be worried?

Texture progression is important for oral motor development. If your baby is between 6 and 8 months, preferring purees is completely normal. However, by 9-10 months, most babies should be progressing to soft lumps and finger foods. If your baby is older than 10 months and refuses anything beyond purees, or gags severely on any texture, discuss this with your pediatrician. They may refer you to a pediatric feeding therapist who can help with gradual texture advancement in a supportive environment.

References

• American Academy of Pediatrics. (2024). Gastroesophageal Reflux in Infants. HealthyChildren.org.
• National Institute of Diabetes and Digestive and Kidney Diseases. (2023). Acid Reflux (GER & GERD) in Infants.
• Mayo Clinic. (2023). Infant Reflux.
• American Academy of Pediatrics. (2024). Tongue-Tie in Babies. HealthyChildren.org.
• Satter, E. (2023). Division of Responsibility in Feeding. Ellyn Satter Institute.
• World Health Organization. (2023). Infant and Young Child Feeding.

Written by

Dr. Michael Torres

Board-Certified Pediatrician, Medical Reviewer

Dr. Torres is a board-certified pediatrician with 12 years of experience in infant and toddler care. He serves as medical reviewer for Baby Care Guide, ensuring all content reflects current AAP guidelines and evidence-based pediatric practice.