RESUMO
Congenital adrenal hyperplasia, which is caused by the disorder of the enzyme for synthesizingadrenal hormones, results in hypertropy of the clitoris due to overporduction of adrenalandrogen. Diagnosis of the congenital adrenal hyperplasia can be obtained by the study ofsteroid levels in blood and urine. The blood levels of ACTH, testosterone and 17-hydroxyprogesteronewere increased and the concentration of 17-ketosteroid were decreased after the dexamethasonesuppression test. The internal genital organ was normal appearance on the pelvic CTscan. Clitoromegaly due to congenital adrenal byperplasia was corrected previously by the variousoperational procedures in which the clitoris was removed entirely for only physial appearance.However the sensitive function of the clitoris after the operative correction throughpuberty is to be preserved by the method "clitoroplasty" for preserving neurovascular supply tothe clitoris. The writer experienced a case of a 5-year-old girl with congenital adrenalhyperplasia and tried this clitoroplasty for surgical treatment of clitoromegly for preservation ofpostoperative sensitivity of the clitoris.