Table 1.

Prader Virilization Stages for Genital Masculinization [27]. NF—normal female; NM—normal male

NF	unvirilized female
I	mild clitoromegaly without labial fusion, separate vaginal and urethral orifices
II	clitoromegaly and posterior labial fusion
III	greater degree of clitoromegaly, single perineal urogenital orifice, and almost complete labial fusion
IV	increasingly phallic clitoris, urethra-like urogenital sinus at the base of the clitoris, and complete labial fusion
V	penile clitoris, urethral meatus at the tip of the phallus, and scrotum-like labia (appear like males without palpable gonads)—completely virilized female
NM	normal male presentation, normal testes