Mayo Clinic: Men’s Health Center


A vasoepididymostomy (or epididymovasostomy) is a procedure in which the vas deferens (tube that carrier sperm from the testicle to the penis) is connected directly to part of the testicle called the epididymis.  The epididymis is where all sperm restored prior to ejaculation after they are made in the testicle.  This type of connection is sometimes referred to as a complex connection, because it is more difficult to perform, and the diameter of the to structures that we are connecting are so different.

A vasoepididymostomy is required in situations where the fluid sampled from the vas deferens at the time of vasectomy reversal has little or no fluid, whole sperm or sperm parts present when the fluid is examined under the microscope.  This can only be determined at the time of vasectomy reversal.  This type of connection is required approximately 30% of the time.  Due to how technically challenging this procedure is, this is one of the many reasons why you should select a surgeon who has the skill and experience to give you the best possible outcome. Dr. Helo currently performs 75-100 vasectomy reversals per year.

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