Ankyloglossia, popularly known as tongue-tie colloquially, is a structural problem that can occur in babies. In order for the human tongue to fully function, it must move freely. However, people with tongue-tie can not fully use their tongue functionally and there is a limitation of movement. Tongue-tie problem in babies is the lingual frenulum. Normally, this flexible structure creates the connection between our tongue and the floor of the mouth. This bond, which is quite tense in some, is short for some people.

While some babies with tongue-tie problems grow up, this does not constitute a problem for them, while in some babies, it can turn into a serious problem that affects speech and feeding as they grow from the time of sucking their mothers.