Gynaecology & Obstetrics Most common cause of ambiguous genitalia in a female child is: A Placenta steroid sulfatase deficiency B Fetal aromatase deficiency C Wnt4 mutation D Congenital adrenal hyperplasia 💡 Explanation Most common cause of ambiguous genitalia in a female child is: ✓ Correct Answer: D. Congenital adrenal hyperplasia