Introduction

• Uncommon.
• Cause: road traffic accident/hit by car (RTA/HBC), ballistic impacts, bite wounds, malicious intervention (occasionally).
• Signs: severe hemorrhage, urethral obstruction, dysuria, fractured os penis.
• Diagnosis: history, clinical signs, radiography.
• Treatment: simple repair with sutures to penile amputation depending on severity.
• Prognosis: depends on extent of trauma.

Pathogenesis

Etiology

• RTA (HBC).
• Ballistic impacts.
• Bite wounds.
• Malicious intervention (occasionally).
• Blunt trauma.

Predisposing factors

• Over sexed dog where excessive masturbation → trauma.

Pathophysiology

• Penile trauma and lacerations involving cavernous tissue result in severe hemorrhage.
• More chronic injuries may cause urethral obstruction and dysuria.
• Crush injuries may result in fracture of os penis with further laceration of cavernous tissue.
• Fractures of os penis may result in dysuria.

Timecourse

• Acute signs following injury.

Diagnosis

Treatment

Outcomes