Tongue-tie, or ankyloglossia, is when the small strip of tissue under the tongue, called the frenulum, is short or tight enough to limit how far the tongue can move. It is reported in roughly 4 to 11 percent of newborns, with figures varying widely depending on how it is defined. The single most important thing to know is this: about half of breastfeeding babies who have a tongue-tie feed perfectly well and need nothing done. Treatment is guided by whether feeding is actually a problem, not by the appearance of the tie alone.
Key takeaways
- Tongue-tie is a short or tight band under the tongue that can restrict its movement.
- It is common, reported in around 4 to 11 percent of newborns.
- Around half of babies with a tongue-tie feed without any difficulty and need no treatment.
- The decision to treat is based on feeding problems, not on how the tie looks.
- When feeding is genuinely affected, a simple release called a frenotomy can help, but non-surgical support is tried first.
What tongue-tie can look like
The frenulum is the cord of tissue that connects the underside of the tongue to the floor of the mouth. In tongue-tie it is short, thick, or attached close to the tip, which limits how far the tongue can lift or stick out. Some babies have a heart-shaped notch at the tip of the tongue when they try to extend it. A related condition, lip-tie, involves the band connecting the upper lip to the gum. Seeing a tie does not automatically mean it is causing trouble.
The link to feeding
To breastfeed well, a baby needs to lift and cup the tongue to draw the breast in and form a seal. If the tongue cannot move freely, some babies struggle. Possible signs during breastfeeding include difficulty latching or staying latched, clicking sounds, slipping off the breast, very long or constant feeds, and poor weight gain. For the mother, a baby who cannot latch well can cause sore, cracked, or pinched nipples and a feeling that the breast is not draining.
It is worth saying clearly that these signs have many causes besides tongue-tie, including positioning and latch technique. That is why an assessment with someone experienced in infant feeding is so valuable. Our guide to breastfeeding and dental care covers the wider feeding picture.
How it is assessed
A proper assessment looks at the whole feeding picture, not just the mouth. A clinician will watch a feed, check the baby's latch and weight, and examine how the tongue moves and lifts rather than only how the frenulum looks. The aim is to work out whether the tie is the actual cause of a feeding problem. Lactation support, adjusting positioning, and improving latch are usually tried first, because many difficulties resolve with that help alone.
When a frenotomy is considered
If feeding is genuinely impaired and the tongue-tie is the likely cause, a minor procedure called a frenotomy can release the band. In a young baby the frenulum has few nerves and little blood supply, so the release is quick and bleeding is usually minimal. Many babies can feed straight afterwards. Studies show that for babies with documented feeding difficulty, a frenotomy can reduce maternal nipple pain and improve latch.
The important balance, echoed by paediatric guidance, is that a frenotomy is not recommended for every baby who has a tongue-tie. Where there is no feeding problem, watchful waiting is appropriate. The procedure is reserved for cases where feeding is affected and conservative support has not resolved it.
What if it is not treated
Many ties never cause issues and need nothing. In some children a tie that did not affect milk feeding is later linked with difficulty with certain sounds in speech, though many children speak perfectly normally. There is no need to rush a release on the assumption of future problems. If concerns about speech arise later, a speech pathologist and dentist can reassess. Early dental visits, covered in our first dental visit guide, are a good chance to raise any worries.
Frequently asked questions
Does every tongue-tie need to be cut?
No. Around half of babies with a tongue-tie feed normally. Treatment is for babies whose feeding is genuinely affected and has not improved with feeding support.
Is a frenotomy painful for my baby?
In young babies the frenulum has few nerve endings and little blood supply, so discomfort and bleeding are usually minimal, and many babies feed soon after.
Can tongue-tie affect bottle feeding too?
It can in some babies, though bottle feeding is often less affected than breastfeeding. Feeding difficulty of any kind is worth assessing.
Will tongue-tie affect my child's speech?
Most children with a tongue-tie speak normally. A small number may have trouble with certain sounds, which can be reassessed later if it arises.
Who should assess my baby?
Someone experienced in infant feeding, such as a lactation consultant, along with a dentist or doctor who can examine the tie. The decision should follow a full feeding assessment.
The takeaway
Tongue-tie is common, and many babies who have one feed without any trouble at all. When feeding is genuinely affected, support comes first, and a simple release can help in the right cases. The key is a careful assessment rather than acting on appearance alone. If you have concerns about your baby's tongue-tie or feeding, the team at Lumi Dental can examine and help guide you to the right support. Visit our current deals page to book. Feeding worries can be stressful for new parents, and asking for an assessment early is always reasonable.
