Feeding Difficulties in Babies and Infants — Causes, Assessment and Treatment

Feeding difficulties in newborns and infants are one of the most stressful experiences for new parents — and one of the most common reasons for early paediatric ENT referral. Tongue tie is the most widely discussed cause, but it is far from the only one. Laryngomalacia, gastro-oesophageal reflux, and airway conditions all require assessment by a specialist with experience in paediatric swallowing and airway conditions before a treatment decision is made.

• Feeding difficulties in infants are common and distressing for parents, but often have an identifiable ENT cause

• Causes include laryngomalacia (a floppy airway), reflux, tongue tie, and cricopharyngeal dysfunction

• A noisy or effortful feed, poor weight gain, or frequent regurgitation are key signs to watch for

• Early specialist assessment allows the underlying cause to be identified and appropriate treatment started

Tongue tie (ankyloglossia) restricts the movement of the tongue and can make latching during breastfeeding difficult or painful. Assessment by a paediatric ENT specialist can determine whether the frenulum needs dividing to improve feeding.

Why Feeding Difficulties Matter

Feeding is the most important activity in a newborn's life. It provides nutrition for growth, supports neurological development, and — for breastfeeding mothers — is central to bonding and maternal wellbeing. When feeding does not go well, the consequences extend beyond the baby's weight gain chart. Parents become anxious, exhausted, and often guilty. Mothers question whether they are doing something wrong. The pressure to breastfeed, combined with a baby who is not thriving at the breast, can be deeply distressing.

The first and most important step is understanding why feeding is difficult — because the cause determines the treatment, and the wrong treatment (or no treatment) can prolong a problem that is entirely correctable.

Common Signs of Feeding Difficulty

Parents describe feeding difficulties in different ways. Common presentations include:

• Poor latch — the baby cannot achieve or maintain a deep latch on the breast or bottle

• Slow feeding — feeds take an unusually long time and the baby tires before finishing

• Choking, gagging, or spluttering during feeds — particularly with faster milk flow

• Coughing during or after feeds

• Noisy breathing during feeds — a high-pitched squeaky sound (stridor)

• Excessive wind, reflux, or vomiting after feeds

• Falling asleep at the breast very quickly without adequate intake

• Fussiness, arching, or crying during feeds

• Poor weight gain despite frequent feeding attempts

• Nipple pain for breastfeeding mothers — often a sign of a latch problem

Not all of these point to the same cause. A thorough assessment is needed to identify which factor or combination of factors is responsible.

Tongue Tie (Ankyloglossia)

Tongue tie is the most commonly discussed cause of infant feeding difficulties and arguably the most commonly over-diagnosed. Understanding it accurately — including its genuine limitations — is important for parents navigating a great deal of conflicting information.

What Is Tongue Tie?

The lingual frenulum is a thin band of tissue connecting the underside of the tongue to the floor of the mouth. In tongue tie, this frenulum is unusually short, thick, or tight — restricting the tongue's range of movement. Because effective breastfeeding requires the tongue to extend, elevate, and move in a wave-like motion to compress the breast and draw milk, restricted tongue movement can interfere with feeding efficiency.

Types of Tongue Tie

Tongue ties vary considerably in their appearance and clinical significance:

Anterior tongue tie — the frenulum attaches close to the tongue tip, producing a notched or heart-shaped appearance when the tongue is elevated. These are usually visible on examination and their relationship to feeding difficulty is more straightforward.

Posterior tongue tie — the frenulum attaches further back and may not be immediately visible, requiring palpation of the floor of the mouth to identify. Posterior tongue tie is more controversial — there is genuine clinical debate about how consistently it causes feeding problems and how reliably it can be diagnosed.

Does Tongue Tie Cause Feeding Difficulty?

Not always. Many babies with a visible frenulum feed without difficulty. The clinical question is not whether a frenulum is present — virtually everyone has one — but whether its restriction is functionally significant and contributing to the specific feeding problems the baby is experiencing.

A diagnosis of tongue tie should be made in the context of a thorough feeding assessment, ideally with input from a lactation consultant, rather than based on appearance alone.

Symptoms Suggesting Tongue Tie Is Affecting Feeding

• Difficulty achieving and maintaining a deep latch

• Nipple pain, compression, or nipple damage in the mother

• The baby making clicking sounds during feeds (air intake from a poor seal)

• The baby chewing rather than sucking

• Poor milk transfer despite long feeds

• Reduced milk supply in the mother as a consequence of poor stimulation

Upper Lip Tie

Upper lip tie — where the frenulum connecting the upper lip to the gum is tight — is frequently discussed alongside tongue tie. It is more controversial as an independent cause of feeding difficulty. When the upper lip cannot flange outward adequately, it may affect the seal around the breast and contribute to wind and poor latch. However, upper lip ties are very common and most do not require treatment.

Treatment: Frenotomy

Where tongue tie is causing clinically significant feeding difficulty, division of the frenulum — frenotomy — is a straightforward procedure that can be performed in clinic in young infants, typically without general anaesthetic. A small incision divides the frenulum, immediately releasing the restriction.

In older infants and children, or where the frenulum is thicker, the procedure may be performed under general anaesthetic. Laser release is an alternative technique used by some practitioners.

Following frenotomy, parents are taught gentle stretching exercises to prevent reattachment while healing occurs. A follow-up with a lactation consultant to work on feeding technique alongside the physical release significantly improves outcomes.

Laryngomalacia

Laryngomalacia is the most common cause of stridor (noisy breathing) in infants and a frequently overlooked cause of feeding difficulty. It occurs when the laryngeal structures — particularly the epiglottis and arytenoid cartilages — are abnormally floppy and collapse inward during inspiration, causing the characteristic high-pitched squeaky sound.

How Does Laryngomalacia Cause Feeding Problems?

Feeding requires coordinated swallowing and breathing. In laryngomalacia, the airway is partially obstructed during inspiration, making it harder for the baby to breathe while feeding. The baby may pause frequently during feeds, pull away from the breast, or tire quickly. Choking and coughing during feeds, and reflux after feeds, are common associated features.

Diagnosis

Laryngomalacia is diagnosed by flexible nasolaryngoscopy — a thin, flexible camera passed through the nose to directly visualise the larynx. This is performed in clinic and is well tolerated in infants. The characteristic appearance of a omega-shaped epiglottis and prolapsing arytenoids confirms the diagnosis.

Management

Most cases of laryngomalacia are mild and resolve spontaneously by 12 to 18 months as the laryngeal structures mature and stiffen. Management in mild cases involves positioning advice (upright during and after feeds), feeding technique adjustments, and reflux management where relevant.

In more severe cases — where feeding difficulty is causing inadequate weight gain, significant respiratory distress, or oxygen desaturation — surgical treatment (supraglottoplasty) is performed to trim the prolapsing tissue and widen the airway. This is highly effective and produces rapid improvement in feeding.

Gastro-Oesophageal Reflux

Reflux — where stomach contents pass back up the oesophagus — is extremely common in infants and in most cases is a normal physiological phenomenon (posseting) that does not require treatment.

Gastro-oesophageal reflux disease (GORD) occurs when reflux causes significant symptoms — pain, feeding refusal, poor weight gain, or respiratory symptoms. Laryngopharyngeal reflux — where reflux reaches the throat and larynx — can cause chronic cough, hoarseness, and feeding aversion.

Signs of Significant Reflux in Infants

• Frequent vomiting or regurgitation, particularly forceful

• Arching of the back during or after feeds

• Crying and apparent pain during or after feeds

• Feeding refusal or very short feeds

• Poor weight gain

• Recurrent cough or wheeze

• Hoarse cry

Management

Mild reflux is managed with positioning (upright for 20 to 30 minutes after feeds), smaller more frequent feeds, and thickening of formula where appropriate. Where significant GORD is identified, acid suppression with a proton pump inhibitor or H2 blocker may be prescribed. Specialist paediatric gastroenterology input is sought for complex cases.

Cleft Palate and Submucous Cleft

A cleft palate — an opening in the roof of the mouth — prevents the baby from creating the negative pressure needed for effective sucking. Feeding with a cleft palate requires specialist bottles and nipples designed to deliver milk without requiring suction, and early input from a cleft team.

A submucous cleft — where the palate muscles are not properly fused but the overlying mucosa is intact — is less obvious and may be missed initially. It can cause feeding difficulty and later speech problems. Careful examination of the palate, including palpation, is part of a thorough feeding assessment.

Other Causes of Infant Feeding Difficulty

Several other conditions can contribute to or cause infant feeding problems:

Prematurity — premature infants often lack the coordination between sucking, swallowing, and breathing that develops around 34 to 36 weeks of gestation. Feeding support in a neonatal unit is essential.

Hypotonia — low muscle tone, whether idiopathic or associated with a neurological condition, affects the strength and coordination of the muscles used in feeding.

Cardiac conditions — heart conditions that cause rapid breathing or reduced stamina can make the physical effort of feeding exhausting.

Nasal obstruction — infants are obligate nasal breathers for the first few months of life. Significant nasal obstruction — from choanal atresia, a deviated septum, or significant congestion — can make coordinated breathing and feeding extremely difficult.

Assessment at Absolute ENT

When a parent brings an infant with feeding difficulties to clinic, my assessment includes:

Detailed feeding history — duration and nature of the problem, feeding method (breast or bottle), maternal feeding history, weight gain trajectory, associated symptoms including noisy breathing, reflux, and cough.

Examination — assessment of the oral cavity including tongue mobility, frenulum assessment, palate examination, and observation of the infant's breathing pattern.

Flexible nasolaryngoscopy — direct visualisation of the larynx and upper airway to assess for laryngomalacia and other structural causes. This is performed gently in clinic and provides information that cannot be obtained by external examination alone.

Feeding observation — where possible, observing a feed directly provides invaluable information about latch, tongue movement, coordination, and the specific point at which difficulty occurs.

Multidisciplinary input — working with a lactation consultant, speech and language therapist specialising in paediatric feeding, or paediatric gastroenterologist where indicated.

Frequently Asked Questions

My baby has been diagnosed with tongue tie — does it definitely need dividing?

Not necessarily. The diagnosis of tongue tie should always be made in the context of a thorough feeding assessment. If feeding is going well and the baby is gaining weight appropriately, treatment may not be needed. The decision to proceed with frenotomy is based on the functional impact, not the appearance of the frenulum alone.

How quickly will feeding improve after tongue tie division?

Some babies show immediate improvement; others take days to weeks as they learn new feeding patterns with their newly released tongue. Post-operative stretching exercises and lactation support significantly improve outcomes.

My baby makes a squeaky noise when breathing — should I be worried?

Noisy breathing in a young infant is most commonly caused by laryngomalacia, which is usually mild and self-resolving. However, it warrants assessment to confirm the diagnosis and severity. If the noise is associated with significant feeding difficulty, poor weight gain, or any colour change during feeds, assessment should be prompt.

At what age is it too late to treat tongue tie?

Tongue tie can be assessed and treated at any age. In older children and adults, the procedure is typically performed under local anaesthetic. Speech difficulties, oral hygiene problems, and difficulty with certain foods can all be indications for treatment beyond infancy.

Is frenotomy painful for my baby?

In young infants, the procedure is brief and the frenulum has very few nerve endings. Most infants cry briefly and settle quickly, often feeding immediately after the procedure. In older infants where sedation or general anaesthetic is used, the procedure is performed under controlled conditions with appropriate pain management.

Book a Paediatric Feeding Assessment

If your baby is struggling to feed, losing weight, or you have concerns about noisy breathing during feeds, an early specialist assessment can identify the cause and guide the most appropriate treatment.

Dr Vyas Prasad sees infants and children for paediatric ENT and feeding assessments at Absolute ENT, Camden Medical Centre, 1 Orchard Boulevard, #09-08, Singapore. Contact the clinic by WhatsApp on +65 8060 8079 or by email at camden.mmc@gmail.com.