II. Indication
- Evaluation of Testicular Torsion
III. Technique
- Examiner strokes or pinches medial thigh
- Stimulus usually causes cremasteric Muscle Contraction
- Observe for rise of the Testicle on same side (normal)
IV. Interpretation
- Normal: Cremasteric Reflex present (Testicle rises)
- Seen in Epididymitis
- Abnormal: Cremasteric Reflex absent (no Testicle rise)
- Suggests Testicular Torsion
- Also absent in 50% of boys under age 30 months
- Do not use this test under age 30 months
V. Efficacy
-
Test Sensitivity for Testicular Torsion: 99%
- Assumes age over 30 months
VI. References
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Related Studies
| Concepts | Organ or Tissue Function (T042) |
| SnomedCT | 30944004 |
| English | Cremasteric reflex, Cremasteric reflex (observable entity) |
| Spanish | reflejo cremastérico (entidad observable), reflejo cremastérico |
