Futanari

[1][2]: 79, 81 Beyond Japan, the term has come to be used to describe a commonly pornographic genre of eroge, manga, and anime, which includes characters that show primary sexual characteristics from both females and males.

[2]: 79  Japanese traditional clothing, which made distinguishing men from women more difficult, as in other cultures, presumably might have had an influence on this development.

[2]: 80  To restrict women from accessing prohibited areas and to avoid smuggling by hiding items in the belt bag, guard posts were assigned to perform body checks.

[2]: 80  Whether anatomical anomalies, such as clitoromegaly or unusual physical development, led to these assumptions remains an open question.

[1] Originally, the Japanese language referred to any character or real person that possessed masculine and feminine traits as futanari.

Stones (with shimenawa ) representing dōsojin found near Karuizawa, Nagano
Example illustration of two futanari variants: one with a scrotum (right) and one without (left), both with breasts, a penis, and a vulva