prader scale prader scale the prader scale or prader staging, named after andrea prader, is a coarse rating system for the measurement of the degree of virilization of the genitalia of the human body and is similar to the quigley scale. it primarily relates to virilization of the female genitalia in cases of congenital adrenal hyperplasia (cah) and identifies five distinct stages, but in recent times has been used to describe the range of differentiation of genitalia, with normal infant presentation being shown on either end of the scale, female on the left (0) and male on the right (6). intersex topics human rights and legal issues compulsory sterilization discrimination human rights reports legal recognition malta declaration medical interventions sex assignment sex characteristics (legal term) yogyakarta principles medicine and biology disorders of sex development genetic diagnosis medical interventions history orchidometer phall-o-meter prader scale quigley scale sexual differentiation more... society and culture endosex (antonym) civil society organizations fictional characters‎ films flag intersex and lgbt literature people religion military us researchers sex verification in sports television history and events history of surgery timeline intersex awareness day intersex day of remembrance international intersex forum rights by country argentina australia canada chile china colombia france germany kenya malta mexico nepal new zealand south africa spain switzerland taiwan uganda united kingdom united states