Understanding Tongue-Tie

What Is Tongue-Tie?

Tongue-tie, or ankyloglossia, occurs when the lingual frenulum—the small band of tissue connecting the underside of the tongue to the floor of the mouth—restricts tongue movement.

Everyone has a frenulum. Its appearance and length vary. What matters is whether restricted movement contributes to functional concerns, such as certain feeding or oral tasks. Appearance alone does not establish a need for treatment.

What Is a Lip Tie?

A lip tie involves the maxillary labial frenulum—the band of tissue connecting the upper lip to the gum above the front teeth—when it is tight or low and may restrict upper-lip movement.

Like tongue-tie, its appearance varies widely, and a visible band alone does not establish a need for treatment. In some infants, a restrictive upper lip frenulum may contribute to latching or feeding difficulties; in older children, families sometimes ask about it because of oral hygiene or dental cleaning discomfort.

Recognizing Potential Signs

Concerns can differ with age. These signs can have many causes and do not automatically mean someone has tongue-tie.

How Is Tongue-Tie Evaluated?

A qualified healthcare professional considers anatomy, tongue mobility, symptoms, and the person's functional needs. Evaluation may include observing feeding, discussing developmental and health history, and assessing oral movement.

Depending on the concern, input from a pediatric clinician, lactation consultant, dentist, or speech-language pathologist may be appropriate. Ask what other causes should be considered and whether supportive care could help.

The same evaluation applies to a restrictive upper lip frenulum (lip tie).

Why Early Awareness Matters

Recognizing concerns can help families access appropriate support, particularly when feeding is difficult. Awareness is an opportunity to seek guidance—not a reason to assume a procedure is needed.

If an infant is having trouble feeding, has fewer wet diapers, or is not gaining weight as expected, contact their pediatric healthcare professional promptly.