Studies Demonstrating No Beneficial Effect of
Varicocelectomy on Pregnancy Rates
| Selected Studies | Year | Pregnancy Rate (%) After Varicocelectomy | Pregnancy Rate (%) With No Surgery |
| Nilsson et al.52 | 1979 | 8 | 18 |
| Baker et al.51 | 1985 | 47 | 45 |
| Vermeulen et al.53 | 1986 | 24 | 56 |
Modified from Nagler, H.M., Luntz, R.K., and Martinis, F.G.: Varicocele. In: Infertility in the Male , 3rd Edition. Edited by L.I. Lipshultz and S.S. Howards. St. Louis: Mosby-Year Book, 1997, p.337.