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Genetic and Environmental Influences on self-reported G-Spots in Women : A

Introduction. There is an ongoing debate around the existence of the G-spot—an allegedly highly sensitive area on the anterior wall of the human vagina. The existence of the G-spot seems to be widely accepted among women, despite the failure of numerous behavioral, anatomical, and biochemical studies to prove its existence. Heritability has been demonstrated in all other genuine anatomical traits studied so far. Aim. To investigate whether the self-reported G-spot has an underlying genetic basis. Methods. 1804 unselected female twins aged 22–83 completed a questionnaire that included questions about female sexuality and asked about the presence or absence of a G-spot. The relative contribution of genetic and environmental factors to variation in the reported existence of a G-spot was assessed using a variance components model