Tongue-tie (ankyloglossia) is where the strip of skin connecting the baby's tongue to the floor of their mouth is shorter than usual.
Tongue-tie is sometimes diagnosed during a baby's routine newborn check, but it's not always easy to spot. It may not become apparent until your baby has problems feeding.
See your health visitor, midwife or GP if you're concerned about your baby's feeding and think they may have tongue-tie.
Tongue-tie affects around 4-11% of newborn babies. It's more common in boys than girls, and sometimes runs in families.