Dye assisted lymphatic sparing subinguinal varicocelectomy. A prospective randomized study.

Background: Division of lymphatic vessels during varicocelectomy could lead to hydrocele formation and decrease in testicular function due to testicular edema. We determined if the use of methylene blue combined with optical magnification reduces the incidence of post-varicocelectomy hydrocele.

Methods: Consecutive patients treated for varicocele at our institution were evaluated for inclusion.