Primary amenorrhea Etiology e 2)Androgen insensitivity syndrome (雄激素不敏感综合征) Testicular feminization(睾丸女性化) (1) Karyotype: 46, XY (2) Presence of testis with normal production of Es ts No androgen receptors in target end-organs ()Presence of secondary sex characteristics (incomplete) (4) No vagina and uterusPrimary amenorrhea Etiology 2) Androgen insensitivity syndrome (雄激素不敏感综合征) Testicular feminization (睾丸女性化) (1) Karyotype: 46, XY (2) Presence of testis with normal production of Es & Ts No androgen receptors in target end-organs (3) Presence of secondary sex characteristics (incomplete) (4) No vagina and uterus