Contested definition of marriage affects intersex people
Frankle, R. E. (2003). "Does a marriage really need sex? A critical analysis of the gender restriction on marriage." Fordham Urban Law Journal XXX: 2007-37.
"Limitations on marriage affect a greater number of people than is first evident. That is, an apparently heterosexual marriage could be successfully challenged if one person is unknowingly intersex. Confining marriage to between two people of the opposite sex leads to problems deciding what an opposite sex couple is and who defines an opposite sex couple."