Spermatoceles, or testicular cysts, that do not grow require no treatment, but if they get larger or lead to discomfort, spermatocelectomy (testicular cyst removal) is an option. In general, they are not dangerous, and the only risk is that they may cut blood supply going to the penis, notes WebMD.
In general, testicular cysts are painless and filled with fluid. They form along the tube that lies behind and above the testicle. The fluid can include dead sperm. The cyst feels like a lump in the scrotum, resting on top of the testicle. Despite the presence of dead sperm, these cysts do not influence fertility for men, according to WebMD.
Many times, testicular cysts do not present with any symptoms. The patient may notice an extra lump on top of the testicle on one side of the scrotum or an increase in size of the scrotum. When symptoms are present, they include swelling, pain, redness on the scrotum or pressure on the base of the penis, as stated by WebMD.
Diagnosis of a testicular cyst involves shining a light behind the testicles to look for other masses that testicular cancer may cause. Because cysts have fluid, light shines through them, but it does not pass through solid masses, which can distinguish between a cyst and cancer, states WebMD.