Tongue Tie in Babies: Symptoms, Diagnosis, and Treatment

Breastfeeding shouldn't hurt. If your baby struggles to latch, loses the breast repeatedly, or you hear clicking sounds during feeding, tongue tie could be the cause.

Tongue tie is more common than many people think, and it can be resolved. In this guide, we explain what tongue tie is, what signs to look for, and how treatment works.

What Is Tongue Tie?

Tongue tie (ankyloglossia) means that the thin band of tissue under the tongue — which connects the tongue to the floor of the mouth — is too short or too tight. The band restricts tongue movement, preventing the baby from extending or lifting the tongue far enough.

All babies have a lingual frenulum. It's a normal part of the mouth's anatomy. The problem only arises when the band is so tight that it limits tongue function.

How common is it?

Tongue tie affects between 4 and 12 percent of all newborns. It is approximately twice as common in boys as in girls. The condition can be hereditary, so if one of the parents had tongue tie as a child, the chances are somewhat higher.

There are varying degrees of tongue tie. Some babies have a visible, tight band right at the tip of the tongue. Others have a less visible posterior tongue tie located further back in the mouth. Both types can affect breastfeeding.

Symptoms of Tongue Tie in Babies

Tongue tie most often manifests through breastfeeding problems. The baby doesn't have enough tongue mobility to form a good latch on the breast.

Signs you may notice in your baby:

• The baby cannot extend the tongue past the gum line or lower lip
• The tongue takes on a heart-shaped indentation at the tip when the baby tries to extend it
• The baby repeatedly loses the latch during breastfeeding
• You hear clicking or smacking sounds while the baby nurses
• The baby seems frustrated at the breast and gives up after a short time
• Poor weight gain — less than 5 oz (150g) per week in the first months

Some babies with tongue tie manage to compensate and nurse without problems. Others experience significant difficulties from day one. It depends on how tight the band is and on the breast shape and milk supply.

Symptoms in the Mother

Tongue tie in a baby is often felt just as much by the mother. When the latch is shallow and incorrect, the breasts bear the strain.

Common signs in the mother:

• Severe pain during breastfeeding that doesn't improve after the first few days
• Sore, cracked nipples that don't heal despite correct positioning
• Nipples that are flat or compressed after nursing (lipstick-shaped)
• Repeated bouts of mastitis because the breast isn't emptying properly
• Low milk supply over time, because inadequate emptying reduces production
• Long, frequent nursing sessions where the baby never seems satisfied

Many mothers of babies with tongue tie feel that breastfeeding is a struggle from the start. You may feel like you're doing something wrong — but it's important to know that the problem lies in the tongue's mobility, not in your breastfeeding technique.

How Is It Diagnosed?

The diagnosis is made through a clinical examination of the baby's mouth. There is no blood test or X-ray — the healthcare provider looks and feels.

Who can examine the baby?

• A midwife at the maternity ward
• A pediatric nurse at a well-baby clinic
• A doctor (GP or pediatrician)
• A lactation consultant with specialized expertise

What are they looking for?

During the examination, the healthcare provider assesses:

• How far the baby can extend the tongue
• How well the tongue can be lifted toward the palate
• Whether the tongue can move freely from side to side
• What the latch looks like during breastfeeding
• Whether the tongue tip is heart-shaped when the baby tries to extend it

There are standardized tools for assessment. Among the most widely used are the Bristol Tongue-tie Assessment Tool (BTAT), which scores based on tongue appearance and mobility, and the Hazelbaker Assessment Tool for Lingual Frenulum Function (HATLFF), which is a more detailed option.

Treatment: Tongue Tie Division

The treatment for tongue tie is called a frenotomy — a simple procedure in which the tight band is cut. It sounds dramatic, but it is a minor procedure that usually takes only a few seconds.

How the procedure works:

1. The baby is held securely by an assistant or one of the parents
2. The doctor or midwife gently lifts the tongue
3. The band is cut with sterile scissors or a laser
4. The baby can breastfeed immediately afterward

Important to know:

• The procedure can be performed as early as day 1 after birth
• It is usually done without anesthetic in small babies (the band has few nerve endings)
• Bleeding is minimal — a few drops is normal
• The baby may cry briefly but is quickly soothed at the breast
• Many parents notice immediate improvement in the latch at the very first feeding afterward

In older babies (over 4–6 months), the band may have thickened, and the procedure may require local anesthetic. In rare cases, it is done under general anesthesia.

Frenotomy carries a very low risk of complications. The most common side effects are slight bleeding and mild tenderness for a few hours afterward.

After Treatment

The band has been cut — but the work isn't quite finished. The tongue may never have moved freely before, and the baby needs a little time to learn to use it in a new way.

The first few days:

• Breastfeeding should be attempted as quickly as possible after the procedure
• Some babies latch better immediately; others need a few days
• A small white wound under the tongue is normal and heals within 1–2 weeks
• Pain is usually minimal and rarely requires pain relief

Tongue exercises:

Many healthcare providers recommend simple exercises to prevent the band from reattaching. These are done several times daily for a few weeks:

• Lift the baby's upper lip and gently stroke along the gum line
• Gently stroke under the tongue from side to side
• Place a clean finger under the tongue and gently lift upward

These exercises should be demonstrated by the person performing the procedure. Be gentle and do them when the baby is calm.

Follow-up:

• Check-in after 1–2 weeks to ensure the band hasn't reattached
• Assessment of breastfeeding — has the latch improved?
• Some babies need help from a lactation consultant to learn new feeding techniques
• In rare cases, physical therapy for tongue motor function may be needed

Where to Get Help

There are several places you can get help with tongue tie. Wait times vary, but many providers can evaluate and treat your baby within a short time.

Pediatrician or family doctor

Your primary care provider can do an initial assessment and refer you further if tongue tie is suspected.

Lactation consultants and breastfeeding clinics

Many hospitals have breastfeeding clinics with experience in tongue tie. International Board Certified Lactation Consultants (IBCLCs) can also provide guidance.

Specialists

• Pediatric ENT (ear, nose, and throat) specialists
• Pediatric dentists
• Pediatric oral surgeons

La Leche League and breastfeeding support organizations

La Leche League is a volunteer organization that offers free breastfeeding support. They can help with feeding challenges and refer you if tongue tie is suspected.

Frequently Asked Questions

Can tongue tie resolve on its own?

In some babies, the band may stretch somewhat over time, but a tight tongue tie does not loosen by itself. If it is causing breastfeeding problems, treatment is recommended.

Does the clipping hurt the baby?

The actual clipping takes 1–2 seconds. The baby may cry briefly but is quickly soothed — often as soon as they are placed at the breast. In small babies (under 3–4 months), it is usually done without anesthetic because the band has very few nerve endings.

Can tongue tie affect speech later?

Untreated tongue tie can in some cases affect the pronunciation of certain sounds, such as "l," "r," and "t." Most children with mild tongue tie develop normal speech. If a child has articulation difficulties around ages 3–4, it can be reassessed.

Can the band reattach after clipping?

It is uncommon, but can happen if the wound under the tongue heals tightly. The tongue exercises recommended after the procedure are intended to prevent this. If problems return, a second clipping can be done.

What if my baby has tongue tie but is breastfeeding fine?

Then there is no reason for treatment. Tongue tie that doesn't cause symptoms or problems doesn't need to be clipped. Treatment is only recommended when breastfeeding, food intake, or later speech development is affected.

Is the procedure covered by insurance?

Coverage varies by country and insurance plan. Frenotomy performed at a hospital is often covered. Ask your pediatrician about referral options and check your insurance plan.

Can the baby bottle-feed if tongue tie isn't treated?

Many babies with tongue tie do better with a bottle than the breast, because the bottle nipple requires less tongue movement. However, formula feeding is an alternative — not a substitute for investigating whether tongue tie can be treated.

Tongue tie is a common and solvable challenge. If you're struggling with breastfeeding and suspect your baby has tongue tie, bring it up with your pediatrician or a lactation consultant. A quick evaluation can provide answers, and treatment is straightforward.

You deserve a breastfeeding journey free from unnecessary pain.

Sources

1. AAP — American Academy of Pediatrics
2. WHO — Breastfeeding
3. La Leche League International