In normal fetal development, during the last months of birth, the testicles develop in the abdomen and descend into the scrotum in the male fetus. Sometimes at birth, one or both testicles may fail to descend into the scrotum. If the testicle has not descended within the first year of the baby's life, surgery may be recommended to return the testicle to its proper position in the scrotum.
Update Date 10/9/2012
Updated by: Linda J. Vorvick, MD, Medical Director and Director of Didactic Curriculum, MEDEX Northwest Division of Physician Assistant Studies, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington. Louis S. Liou, MD, PhD, Chief of Urology, Cambridge Health Alliance, Visiting Assistant Professor of Surgery, Harvard Medical School. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M. Health Solutions, Ebix, Inc.