Tongue-Tie (Ankyloglossia) in Babies

Content reviewed against published AAP, NIH, NICE guidelines

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Tongue-tie (ankyloglossia) occurs when the lingual frenulum — the band of tissue connecting the underside of the tongue to the floor of the mouth — is unusually short, thick, or tight, restricting tongue movement. It affects approximately 4-11% of newborns and is more common in males. Tongue-tie can interfere with breastfeeding, cause nipple pain for the mother, and in some cases affect speech development later. Many tongue-ties are mild and cause no problems, while others may benefit from frenotomy (surgical release).

Key takeaways

  • Tongue-tie (ankyloglossia) occurs when the lingual frenulum — the band of tissue connecting the underside of the tongue to the floor of the mouth — is unusually short, thick, or tight, restricting tongue movement.
  • Most common cause: Congenital variation in frenulum development
  • Emergency: Tongue-tie itself is never an emergency
  • Home care: Work with a certified lactation consultant (IBCLC) to optimize latch and positioning

Possible Causes

Congenital variation in frenulum developmentcommon
Familial/genetic predispositioncommon
Associated with other midline defects (rare)rare

When to Seek Help

Emergency — Call 911 or go to ER:

  • Tongue-tie itself is never an emergency

Urgent — See doctor today:

  • Newborn with tongue-tie unable to feed effectively and losing more than 10% of birth weight
  • Severe nipple damage in breastfeeding mother preventing continued feeding

Same-day appointment:

  • Suspected tongue-tie with moderate breastfeeding difficulty (painful latch, slow weight gain)
  • Tongue-tie with baby clicking during feeds and mother experiencing nipple pain

Monitor at home:

  • Visible tongue-tie with no feeding difficulties and good weight gain
  • Mild tongue-tie with breastfeeding going well after initial adjustment
  • Asymptomatic tongue-tie found incidentally

By Age

0-2 months

Normal: Mild tongue-tie with no breastfeeding problems requires no intervention. Some visible frenulum attachment is normal — not all short frenulums cause functional problems.

Worry if: Baby unable to latch effectively despite proper positioning, painful nursing with cracked/bleeding nipples, poor weight gain, clicking sounds during feeds, or prolonged feeding sessions (more than 40 minutes) with unsatisfied baby.

2-6 months

Normal: If baby is feeding well and gaining weight, a visible tongue-tie without symptoms does not need treatment.

Worry if: Persistent difficulty with breastfeeding, poor weight gain, excessive gassiness from poor seal, or mother developing recurrent mastitis due to inefficient milk transfer.

6-12 months

Normal: Many babies with mild tongue-tie adapt as they grow. Introduction of solids may not be affected.

Worry if: Difficulty managing solid foods, gagging on textured foods beyond normal, or tongue unable to sweep food around mouth. Speech concerns are not typically assessed until age 2-3.

1-3 years

Normal: Most children with mild tongue-tie develop normal speech. The tongue tip may appear heart-shaped when extended.

Worry if: Speech sound errors persisting beyond expected age, difficulty with sounds requiring tongue elevation (l, r, t, d, n), inability to lick lips or stick tongue out past lower lip.

Home Care

  • Work with a certified lactation consultant (IBCLC) to optimize latch and positioning
  • Try different breastfeeding positions (laid-back, football hold) to improve latch
  • If bottle feeding, use a slow-flow nipple and paced feeding technique
  • Gentle tongue exercises as recommended by a lactation consultant or speech therapist
  • Skin-to-skin contact to encourage instinctive feeding behaviors
  • If considering frenotomy, seek evaluation from a provider experienced in tongue-tie assessment
  • Post-frenotomy wound care: gentle stretches as instructed to prevent reattachment
  • Do NOT attempt to cut or stretch the frenulum at home

Frequently asked questions

What causes tongue-tie (ankyloglossia)?
Congenital variation in frenulum development (common); Familial/genetic predisposition (common); Associated with other midline defects (rare) (rare)
When is this an emergency?
Tongue-tie itself is never an emergency
What can I do at home?
Work with a certified lactation consultant (IBCLC) to optimize latch and positioning. Try different breastfeeding positions (laid-back, football hold) to improve latch. If bottle feeding, use a slow-flow nipple and paced feeding technique. Gentle tongue exercises as recommended by a lactation consultant or speech therapist. Skin-to-skin contact to encourage instinctive feeding behaviors. If considering frenotomy, seek evaluation from a provider experienced in tongue-tie assessment. Post-frenotomy wound care: gentle stretches as instructed to prevent reattachment. Do NOT attempt to cut or stretch the frenulum at home
When should I call the doctor?
Suspected tongue-tie with moderate breastfeeding difficulty (painful latch, slow weight gain). Tongue-tie with baby clicking during feeds and mother experiencing nipple pain

Sources

AAPNIHNICE

All content follows our editorial policy and is reviewed against published clinical guidelines.

2,705 evidence-based guides6 authoritative medical sources

Related Symptoms

lip tierefusing to eatdrooling

Bottom line

Most cases of tongue-tie (ankyloglossia) in babies are not emergencies. However, seek immediate care if tongue-tie itself is never an emergency.

Trust your instincts. If something feels wrong, reach out to your pediatrician. Worrying about your baby means you care — that is a good thing.