Ankyloglossia is a condition of limited tongue mobility caused by a short lingual frenulum. The diagnosis and treatment of ankyloglossia are still controversial. The main clinical problem encountered during breastfeeding is difficulty in sucking and its clinical reflections. This study aims to evaluate the newborn population born regarding ankyloglossia and to determine the results of frenotomy. We conducted an observational, cross-sectional study among newborns born in a tertiary hospital. We included all newborns born between January 1 and June 30, 2022. The study algorithm was determined before the defined dates and data were recorded during the screening period. The recorded data were retrospectively collected from the files. Within six months, 705 babies were born. Due to additional problems and other conditions that prevent breastfeeding, evaluable data of 207 (29.3%) infants could not be provided. Of the remaining 498 infants, 234 (33.2%) had ankyloglossia. Breastfeeding was unsuccessful before frenotomy in 12 Coryllos type-1 patients, and all had difficulty in sucking. Frenotomy was performed within the three-months follow-up period in all patients with complaints of inability to firmly grasp the breast, nipple slipping from the mouth, and nipple biting during the first 24 hours. In terms of breastfeeding problems, regardless of the anatomical typology, frenotomy can be performed safely in the early life with successful results. If deficiencies or difficulties in nursing is noticed in ankyloglossia patients even at the first control, frenotomy should be recommended in clinical conditions.