Incidence of Short Sublingual Frenulum in Newborns at the Hospital Nostra Senyora de Meritxell.

Inclusion Criteria: \- The inclusion criteria are patients born from July 2018 to February 2021 (both inclusive) and of both genders. Exclusion Criteria: * The exclusion criteria are all those who were born abroad and who after 24 hours go to the Hospital of Andorra, those urgently transferred to other foreign centers after birth, as well as those who present medical records with lack of information.