What is a hydrocele?
A hydrocele is a fluid filled sac within the scrotum. The testicles are bathed by an ounce or so of fluid that is contained within a special sac called the processus vaginalis. The body constantly forms and reabsorbs fluid within the processus vaginalis. If the testicle or epididymis becomes inflamed, or rarely if there is a testicular tumor, more fluid accumulates within the processus vaginalis than can be absorbed. If a hydrocele becomes large enough, the testicle cant be felt on examination. A scrotal ultrasound can reliably diagnose a hydrocele and demonstrate the testicular anatomy. A hydrocele can be surgically removed through an incision in the scrotal sac. Surgery is only indicated, though, if the hydrocele is causing symptoms. Drainage of fluid by inserting a needle and withdrawing the fluid is not recommended because the fluid will reform within a matter of days and the needle stick can transfer bacteria from the skin and cause an infection.
