[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.