Exam

Prehn's Sign

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Prehn's Sign, Prehns Sign, Prehn Sign

  • Indications
  1. Scrotal Pain
  • Technique
  1. Examiner elevates Scrotum with hand, supporting Testicle
  • Interpretation
  • Positive
  1. Elevation of Scrotum relieves pain in Epididymitis
  2. Does not offer relief in Testicular Torsion (elevation may worsen pain)
  • Efficacy
  1. Test Sensitivity: 91.3%
    1. Does not exclude Testicular Torsion
  2. Test Specificity: 78.3%
    1. Present in more than 20% of Epididymitis cases
  • References
  1. Asgari (2006) Urol J 3(2): 104-8 [PubMed]