male hermaphroditism

...To transform a person into a woman, the testicles are removed, the penis is amputated, and surgery is performed to reshape the urethra and vagina.
[Male hermaphroditism]
Although the gonads are the testes, female genitalia such as the fallopian tubes and vagina are present, and the male genitalia are underdeveloped. This is thought to be due to the testes lacking the ability to fully differentiate and develop into male genitalia.

*Some of the terminology that mentions "male hermaphroditism" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…女性にする場合は，睾丸を摘出し，陰茎の切断や尿道および腟の形成手術を行う。性転換
［男性仮性半陰陽male hermaphroditism］
　性腺が睾丸でありながら，卵管や腟などの女性性器が認められ，男性性器の発育不全が起こるもの。これは，睾丸に男性性器を十分に分化発達させる力が欠けていたためと考えられている。…

※「male hermaphroditism」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報