A hydrocele usually occurs on one side. The accumulation can be a marker of physical trauma, infection or tumor, but the cause is generally unknown.
A hydrocele feels like a small fluid filled balloon inside the scrotum. It is smooth, and is mainly in front of one of the testes. Hydroceles vary greatly in size. Hydroceles are normally painless and harmless. Large hydroceles cause discomfort because of their size. As the fluid of a hydrocele is transparent, light shone through a hydrocelic region will be visible from the other side.
Symptoms of a hydrocele can easily be distinguished from testicular cancer, as a hydrocele is soft and fluidy, where a testicular cancer feels hard and rough.
Through diagnostic ultrasound the accumulation of fluids can be diagnosed correctly.
The accumulation should generally be removed surgically. The procedure is called hydrocelectomy, the tunica vaginalis is excised, the fluid drained, and the edges of the tunica are sutured to prevent the reaccumulation of fluid.
If the hydrocele is not surgically removed, it may continue to grow. The hydrocele fluid can be aspirated, the procedure is less invasive but recurrence rates are high. Sclerotherapy, the injection of a solution following aspiration of the hydrocele fluid may increase success rates. In many patients, the procedure of aspiration and sclerotherapy is repeated as the hydrocele recurrs.
A hydrocele testis is not generally thought to affect fertility. However, it may be indicative of other factors that may affect fertility.