Testicular Torsion — Management Pathway

Step-by-step decision

Choose step by step as prompted; reaching an endpoint gives the management recommendation. You can go back a step or restart anytime.

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Full pathway

1. [Decision] TWIST / clinical suspicion
   Acute scrotal pain — TWIST score / clinical suspicion? (Surgical emergency and clinical diagnosis, 'time is testicle': salvage is highest with surgery within 6 h of pain onset (4–8 h window). Presentation: sudden severe unilateral pain, nausea/vomiting, high-riding/horizontal testis, absent cremasteric reflex, scrotal swelling. TWIST (swelling 2, hard 2, absent cremasteric reflex 1, nausea/vomiting 1, high-riding 1).)
   • High suspicion / high score (≥5) → High suspicion → immediate exploration
   • Moderate suspicion (3–4) → Moderate suspicion · ultrasound without delaying surgery
   • Low suspicion (0–2) → Low suspicion · ultrasound
2. [End] Low suspicion · ultrasound
   Low suspicion (score 0–2): color Doppler ultrasound to assess flow and differentiate (epididymo-orchitis, appendage torsion, etc.); manage by the result, with urology consult if doubt persists.
3. [End] Moderate suspicion · ultrasound without delaying surgery
   Moderate suspicion: color Doppler ultrasound (reduced/absent flow supports torsion) — but do not delay surgery; positive or persistent clinical suspicion → urgent urology consult for exploration.
4. [End] High suspicion → immediate exploration
   High suspicion / TWIST ≥5: immediate urology consult + surgical exploration with detorsion + bilateral orchidopexy, orchiectomy if necrotic; do not delay surgery for ultrasound when suspicion is high. If surgery is markedly delayed/remote, manual detorsion ('open-book' medial-to-lateral 180°, may need several turns) can be a bridge but does not replace surgical fixation.

Source guidelines & references

• AUA/EAU guidelines on acute scrotal pain and testicular torsion
• Barbosa JA, et al. TWIST score

This pathway is our own synthesis of the decision logic in the guidelines above (not the guideline verbatim); thresholds and workflows change as guidelines update — in practice follow the latest guideline, your institution's protocol and the individual patient.

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