A mother is suing her own 17-year-old transgender daughter.

A Minnesota mother is suing her 17-year-old transgender daughter for beginning her gender transition without her parental consent.

In addition to suing her daughter, mother Anmarie Calgaro is also launching claims against the health care professionals involved.

According to Calgaro, her parental rights were violated when the gender re-assignment went ahead withour her permission, the Washington Post reports.

Calargo defended her decision in an emotional press conference and she even refused to acknowledge her child’s transition by continuously referring to her as her “son”.

“Not only was I robbed of the opportunity to help my son make good decisions, but I also feel he was robbed of a key advocate in his life, his mother,” Calgaro stated.

While the teenager did make efforts to become emancipated from her mother  last year, nothing was ever legalised.

According to documents, Calgaro “made it known to him that she no longer wishe[d] to have any contact with him” and made no effort to have them return home.

The girl also claims her mother never filed a missing person report despite being absent from the family home for six months.

Calgaro told the media she was not against her child’s gender transition but wanted her to “slow down”.

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