Breastfeeding problems
Source: NHS
To breastfeed successfully, the 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.
Babies with tongue-tie aren't able to open their mouths wide enough to latch on to their mother's breast properly.
Read about the signs of tongue-tie in breastfed babies , and the problems this causes breastfeeding mothers.