The embryology and endocrinology of primary amenorrhoea: a study of one hundred and forty patients.

The overwhelming majority of girls presenting with primary amenorrhoea have aetiologies with their roots in disturbances of embryogenesis and/or the endocrinology of sexual differentiation. This review will deal with the fundamentals of embryology and endocrinology relevant to the subject and then discuss the findings in a group of one hundred and forty patients with primary amenorrhoea as they relate to these disturbances.