Most common cause aof ambigious genitalia in a female child is

CONGENITAL ADRENAL HYPERPLASIA Clinical presentation: Ambiguity of sex detected at birth are due to androgenital syndrome unless proved otherwise. Hirsutism and amenorrhea may be presenting features around puberty in milder form Diagnosis at birth An enlarged clitoris Presence of penile urethra or hypospadius Hyponatremia,hypakalemia and hypotension Fusion of labia minora