Hydroceles and epididymal cysts can be treated under short anaesthetics as a daycase procedure.
A hydrocele is a collection of fluid around the testis. Hydroceles are not harmful but they can be uncomfortable. Options for treatment include aspiration or surgical drainage. Surgery is usually done as a daycase procedure under general anaesthetic via a small incision in the scrotum. Risks include infection, bleeding, pain (which can be chronic), a small risk of testicular damage and recurrence.
Epidiymal cysts are collections of fluid in the collecting tubes of the testis (epididymis). Like hydroceles, they are not harmful but can cause some discomfort when larger. The risks of surgery are similar to that of a hydrocele repair. Some men feel their epididymis is thicker after surgery.
Information leaflets in both hydrocele and epididymal cyst surgery can be found here: