Obstuctive Interval vs. Postoperative Results
After Vasectomy Reversal
| YEARS OBSTRUCTED | NO. WITH SPERM (%) | NO. PREGNANT (%) |
| Fewer than 3 | 86/89(97) | 56/74(76) |
| 3-8 | 525/600(88) | 253/478(53) |
| 9-14 | 32/45(71) | 11/37(30) |
Modified from Thomas, A.J., Jr., and Howards, S.S.: Microsurgical treatment of male infertility. In: Infertility in the Male, 3rd Edition. Edited by L.I. Lipshultz and S.S. Howards. St. Louis, Mosby-Year Book, 1997, p.377.