Masculinized females possess ovaries and are female by genetic sex (XX), but the external genitalia are not those of a normal female. Of all infants with ambiguous genitalia, 40-45% have adrenal hyperplasia. Rarer causes of female pseudohermaphroditism are excess maternal androgen caused by drug ingestion, tumor secretion, or possibly placental aromatase deficiency.

Male pseudohermaphroditism
Primary gonadal defect Y Chromosome defect
True hermaphroditism
Gonadal dysgenesis
Turner syndrome
Mosaicism
Structural abnormality ¢?" X chromosome
Normal karyotype