International Board of Certified Lactation Consultant (IBCLC) Practice Exam

Approximately what percentage of newborns are estimated to have a tongue tie?

1. 1.0 to 2.0 percent

2. 3.2 to 4.8 percent

3. 5.0 to 6.0 percent

4. 7.0 to 8.0 percent

The correct answer is: 3.2 to 4.8 percent

The correct answer indicates that approximately 3.2 to 4.8 percent of newborns are estimated to have a tongue tie, also known as ankyloglossia. This figure is based on various studies which have assessed the prevalence of tongue tie in newborns. Research suggests that tongue tie can often go unnoticed since it may not always create significant issues for breastfeeding or speech. However, it is important for lactation consultants and healthcare professionals to be aware of this condition, as it can impact breastfeeding success. The estimated percentage provided in this option aligns with current clinical findings in pediatric and lactation literature, where it has been observed that this mid-range prevalence adequately reflects the number of cases noted in well-conducted clinical assessments. In contrast, other provided percentages may represent broader or narrower scopes that are based on specific populations or methods of assessment, which do not accurately generalize to the overall newborn population. Understanding the correct prevalence helps focus attention on early identification and intervention strategies for those infants who may be affected by tongue tie.