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Pregnancy Rates by Age and Tubal Ligation Method

Tubal Reversal Success Rate – Tubal Reversal Pregnancy Report 2009

Notice of Study Update

The following is Dr. Berger’s report from 2009. The corresponding page of an updated report can be seen at:
Tubal Reversal Pregnancy Report 2011 – Pregnancies By Age And Method 

Chances of Getting Pregnant After Tubal Ligation Reversal

Tubal Reversal Success Rates At Chapel Hill Tubal Reversal Center

From July 2000 to June 2008, 5046 women underwent tubal ligation reversal at Chapel Hill Tubal Reversal Center. The operative techniques of microsurgical tubal anastomosis, tubouterine implantation, and salpingostomy were used as appropriate to each patient’s situation, and often these techniques were combined in a single case. Including all women’s ages, methods of tubal ligation, and operative techniques used for tubal reversal, the overall pregnancy rate was 66% based on 3317 pregnancies reported during this 8 year interval. The following tables show pregnancy rates specific for age, method of tubal ligation, and remaining tubal lengths available for repair and the interaction between these factors.

Pregnancy Rates By Age

As expected, younger women had higher pregnancy rates than older women. The pregnancy rate after surgery ranged from 80% for women under 30 to 31% for women 40 years of age and older (Table 3).

Table 3. Pregnancy Rates by Age
Age Total Cases Pregnant (No.) Pregnant (%)
<30 761 610 80%
30-34 1873 1367 73%
35-39 1795 1152 64%
40+ 617 188 31%

Pregnancy Rates By Tubal Ligation Method

Reversal of tubal clip procedures had the highest pregnancy rate (75%), followed by tubal rings (72%), coagulation (66%) and ligation/resection (63%). Patients with other or unknown methods of tubal ligation had the lowest pregnancy rate (54%).

Table 4. Pregnancy Rates by Tubal Ligation Method
Method Total Cases Pregnant (No.) Pregnant (%)
Clip 409 306 75%
Ring 853 614 72%
Coagulation 1605 1053 66%
Ligation/Resection 1923 1207 63%
Other/unknown 256 137 54%

Pregnancy Rates By Age And Method

Pregnancy rates taking into account both age and tubal ligation method are shown in Table 5. The highest pregnancy rate (90%) was reported by women under 30 years of age who had reversal of a previous clip method of sterilization. Of the two variables, age is more predictive than tubal ligation method regarding the likelihood of becoming pregnant after reversal surgery.

Table 5. Pregnancy Rates by Age and Tubal Ligation Method
Age Clip Ring Coagulation Ligation/Resection
<30 69/77 (90%) 137/163 (84%) 190/244 (78%) 192/248 (77%)
30-34 114/139 (82%) 227/299 (76%) 461/620 (74%) 517/744 (70%)
35-39 110/151 (73%) 210/303 (69%) 353/554 (64%) 421/681 (62%)
40+ 13/42 (31%) 40/88 (46%) 49/187 (26%) 77/250 (31%)

Tubal Reversal Pregnancy Study 2009

Table Of Contents:

Pregnancy Rates By Tubal Lengths

1,425 thoughts on “Pregnancy Rates by Age and Tubal Ligation Method”

  1. Anonymous says:

    Would you recommend tubal ligation for a woman who is almost 50.

    1. Dr. Monteith says:

      I would not only because the chance of natural pregnancy after age 50 is less than 1%.

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