The prevalence of scrotal tongue and geographic tongue in 70,359 Israeli schoolchildren

abstract The prevalence of scrotal and geographic tongue among 70,359 Israeli schoolchildren was examined according to age, sex and father's country of birth. Scrotal tongue was observed in 1.96 % of the population, but increased with age from 0.60 % at 7 years to 3.76 % at 12–18 years. Males had a significantly higher prevalence. There were significant differences in the prevalence among the different population groups examined, in that the Ashkenazi had a higher prevalence (2.17 %) than both the non-Ashkenazi (1.93 %) and the Israeli (1.70%). Prevalence of geographic tongue was 1.14% and was not associated with age. Males had a significantly higher prevalence. The differences between the population groups were significant. A highly significant association was found in the occurrence of scrotal and geographic tongue.