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Testicular torsion most often occurs due to a trait that is inherited which leads to the testicle being able to rotate more freely in the scrotum. The testicle can then twist on itself, cutting off its flow of blood. Testicular torsion is considered an emergency. Surgery is usually required, and it should be performed within about 4 hours from the onset of symptoms to save the testicle.
Review Date 7/1/2025
Updated by: Kelly L. Stratton, MD, FACS, Associate Professor, Department of Urology, University of Oklahoma Health Sciences Center, Oklahoma City, OK. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.
