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Testicular Torsion

What is testicular torsion?

Testicular torsion is a twisting of the testicles and the spermatic cord (the structure extending from the groin to the testicles that contains nerves, ducts, and blood vessels). The torsion causes decreased blood flow to the testicles, essentially strangling them of oxygen and nutrients. This is a painful problem that usually occurs in boys age 10 and older. While it generally occurs in adolescent boys, it may also occur during fetal development or shortly after a baby is born.

What causes testicular torsion?

In preadolescent and adolescent boys, torsion occurs primarily from incomplete attachment of the testicles within the scrotum. This permits the testicles to be more movable, allowing them to twist. Testicular torsion detected in the fetus results when development of the protective sac that surrounds the testicles within the scrotum does not attach to the scrotum internally.

The cause of testicular torsion is unknown. However, some cases have been seen in fathers, sons, and brothers, suggesting a genetic component.

What are the symptoms of testicular torsion?

The symptoms of testicular torsion may involve one or both of the testicles. The following are the most common symptoms:

  • Scrotal (involving the scrotum):

    • Pain

    • Swelling

    • Bruising in newborns

    • Firmness in newborns

    • Redness

    • High-lying testicles

  • Nausea and vomiting

  • Loss of cremasteric reflex (reflex involved in controlling testicular movement into the pelvic cavity, which is normally elicited by cold, touch, emotional excitement, or exercise)

The symptoms of a testicular torsion may look like other conditions or medical problems. Always consult your child's health care provider for a diagnosis.

How is testicular torsion diagnosed?

Testicular torsion is usually diagnosed with a physical exam and a medical history. Your health care provider may also do an ultrasound, a noninvasive test that uses sound waves to make pictures of the kidney system to assess blood flow to the testicles. Some providers may also take children with typical symptoms straight to the operating room for definitive treatment. It is imperative to make a prompt diagnosis because prolonged testicular torsion may cause irreversible damage to the testicles. Other diagnostic tests may be included, but there is no test that can diagnose testicular torsion accurately all of the time.

What is the treatment for testicular torsion?

Testicular torsion usually requires immediate intervention. The severity of the torsion depends on if the testicle(s) is partially or completely twisted. The more twisted the testicle, the more urgent the intervention. To minimize long-term problems, intervention is usually required within 6 hours of symptoms.

Most boys who develop testicular torsion will require prompt surgery to correct the problem. Surgery will help prevent torsion from occurring in the future. In some cases, manipulation by hand to untwist the torsion may be possible.

Online Medical Reviewer: Holloway, Beth, RN, M.Ed.
Online Medical Reviewer: MMI board-certified, academically affiliated clinician
Date Last Reviewed: 9/24/2014
© 2000-2014 The StayWell Company, LLC. 780 Township Line Road, Yardley, PA 19067. All rights reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions.
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