Tongue-tie (ankyloglossia) is where the strip of skin connecting the baby’s tongue to the bottom of their mouth is shorter than usual.
To breastfeed successfully, a baby needs to latch on to both the breast tissue and nipple, and their tongue needs to cover the lower gum so the nipple is protected from damage.
Some babies with tongue-tie are not able to open their mouths wide enough to latch on to the breast properly.
If you’re breastfeeding your baby and they have tongue-tie they may: