Epididymal Cyst: Symptoms, Causes, and Treatment Options

What Is It?

A fluid‑filled sac in the epididymis (coiled tube behind the testicle). Usually benign and asymptomatic.

Possible Symptoms

  • Painless lump in scrotum
  • Heaviness or discomfort
  • Rare: pain, swelling, infertility if large/complicated

Causes

  • Epididymal obstruction (infection, inflammation, trauma)
  • Post‑vasectomy (increased incidence)

Management

  • Observation if asymptomatic.
  • Drainage or surgical excision (spermatocelectomy) if symptomatic.

Epidemiology

Up to 1% of men develop an epididymal cyst in their lifetime.

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