As a fetus develops, the formation of the internal and/or external sexual organs may be abnormal. This abnormal development can give rise to sexually ambiguous anatomical structures or normal-appearing anatomy that does not function correctly.
Review Date 5/17/2019
Updated by: Neil K. Kaneshiro, MD, MHA, Clinical Professor of Pediatrics, University of Washington School of Medicine, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.