A spermatocele is a cyst-like mass that forms within the epididymis. It is usually filled with fluid and dead sperm cells. A spermatocele can be left untreated unless it is growing too large or causing the individual discomfort.
Reviewed By: Jennifer Sobol, DO, urologist with the Michigan Institute of Urology, West Bloomfield, MI. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.