Prehn's sign

Prehn's sign

Prehn's sign is a medical diagnostic indicator that helps determine whether the presenting injured testicle is caused by acute epididymitis or from testicular torsion. cite web |url=http://www.aafp.org/afp/990215ap/817.html |title=Diagnosis and Treatment of the Acute Scrotum - February 15, 1999 - American Academy of Family Physicians |format= |work= |accessdate=]

According to Prehn's sign, the physical lifting of the testicles relieves the pain of epididymitis but not pain caused by testicular torsion.

Negative Prehn's sign indicates no pain relief with lifting the affected testicle, which points towards testicular torsion which is a medical emergency and must be relieved within 6 hours.

Positive Prehn's sign indicates there is pain relief with lifting the affected testicle, which points towards epididymitis.

References


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  • Prehn sign — elevation and support of the scrotum will relieve the pain in epididymo orchitis, but not in torsion of the testicle …   Medical dictionary

  • Douglas T. Prehn — était un urologue du XXe siècle dans la US Navy et à Wausau, Wisconsin. Il est connu pour avoir laissé son nom au signe de Prehn qu il a décrit en 1934[1]. Notes et références ↑ Douglas T. P …   Wikipédia en Français

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