What is a spermatocele?
Last updated September 3, 2026.
A harmless fluid-filled cyst on the epididymis: smooth, round, clearly separate from the testicle, usually painless - benign, not cancer, does not become cancer, and usually needs no treatment beyond confirmation by exam and ultrasound. The exceptions: one that grows large enough to ache or drag can be removed or drained (draining tends to refill, and surgery carries a small duct risk on that side - reserved for genuine bother). The standing rule overrides: any new scrotal lump gets examined - the diagnosis comes from the exam, not from guessing, and once it is named you can stop worrying.
What to do
- Get the lump confirmed. Exam plus ultrasound settles it quickly.
- Note the classic feel. Smooth, separate, above the testicle, painless.
- Leave a quiet one alone. No treatment is the standard management.
- Treat only real bother. Size, ache, or drag earns the surgical conversation.
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