Varicocele is an abnormal dilatation of the veins of the pampiniform plexus. It occurs in 6% of children at age 10, 13% of adolescents, 15 percent of males in the general population. However, varicocele has been observed in 35 percent of men with primary infertility and up to 80 percent of men with secondary infertility. Although many men with varicocele can father children, varicocele causes a progressive time-dependent decline in semen quality.