2D:4D Finger Length Ratios in Individuals with Gender Dysphoria

Abstract

Objective: The neurobiological basis of Gender Dysphoria (GD) is not yet fully known. In recent years, the role of prenatal exposure to testosterone has been emphasized in the development of the GD. The aim of this study was to compare the 2D:4D digit ratio, which is considered to be a morphological indicator of exposure to testosterone in the prenatal period, in individuals with GD.