The epididymis is a long, thin duct located in the scrotum, along each testicle. Its role is to store newly formed sperm. Sperm remain in the epididymis until ejaculation, when they are ejected into the vas deferens. Epididymal cysts are benign, painless tumours filled with liquid. The origin of the formation of epididymal cysts is unknown; their exact frequency is also unknown, but they can occur at any age and have no effect on fertility. Removal of the cyst or cysts is recommended in the event of pain or discomfort. The diagnosis is clinical with an ultrasound confirmation.
The cyst or cysts are removed in outpatient surgery (morning arrival at the clinic and discharge in the evening), under light general anaesthesia. It is done through a scrotal incision opposite the cyst. Complications (persistent pain and haematoma) are rare and pass within few days.