Cossey v. the United Kingdom (European Court of Human Rights)

In 1990, the European Court of Human Rights held that there had been no violation of Article 8 (right to respect for private and family life) of the Convention. It reiterated that “gender reassignment surgery did not result in the acquisition of all the biological characteristics of the other sex” (§ 40 of the judgment). It also noted that an annotation in the birth register would not be an appropriate solution. The Court also held that there had been no violation of Article 12 (right to marry and  found a family). Attachment to the traditional concept of marriage provided “sufficient reason for the continued adoption of biological criteria for determining a person’s sex for the purposes of marriage” and it was for the States to regulate by national law the exercise of the right to marry.

Cossey v. UK.