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Tubal Reversal Pregnancy Study 2009 – Tubal Lengths

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 Study Report 2011 – Fallopian Tube Lengths

Pregnancy Rates By Fallopian Tube Lengths

The fallopian tube lengths remaining after a tubal ligation procedure are important determinants of the chances of getting pregnant after tubal reversal surgery. (Normal fallopian tube length before a tubal ligation is approximately 10 cm or 4 inches.)

Tubal segment lengths are measured routinely during surgery at Chapel Hill Tubal Reversal Center The average length of the two fallopian tubes after repair was correlated with the likelihood of pregnancy after tubal reversal (Table 6). Women with longer tubal lengths had higher pregnancy rates than women with shorter lengths following tubal reversal. Women with tubal lengths of 7.5 cm or longer had a pregnancy rate of 77%. The pregnancy rate declined as tubal length decreased, but even women with the shortest tubes (less than 2.5 cm) became pregnant (38%). Although previously unreported in the medical literature, it became apparent during this study that a repaired fallopian tube of any length can result in pregnancy. Based on reports by women with only 1 fallopian tube, we now know that tubal lengths as short as 1 cm can result in a normal pregnancy.

Table 6. Pregnancy Rates by Tubal Length (cm)
Length Total Women Pregnant (No.) Pregnant (%)
7.5+ 469 362 77%
5.0-7.4 2826 1966 70%
2.5-4.9 1602 920 57%
<2.5 112 42 38%

Tubal Ligation Method And Tubal Length

When tubal ligation method and average tubal lengths are taken into account simultaneously, it becomes clear that the amount of fallopian tube remaining after a sterilization procedure is the more important factor predicting the chances of getting pregnant after tubal reversal surgery (Table 7). This makes sense, since the less damage that occurs to the fallopian tube during a sterilization procedure, the more remains to be able to function normally once the tube has been surgically repaired.

Table 7. Pregnancy Rates by Tubal Ligation Method and Tubal Length (cm)
Method 7.5+ 5.0-7.4 2.5-4.9 <2.5
Clip 137/168 (82%) 155/222 (70%) 7/11 (64%)
Ring 86/118 (73%) 493/672 (73%) 35/62 (57%)
Coagulation 49/62 (79%) 516/774 (69%) 448/706 (64%) 27/76 (36%)
Ligation/Resection 72/92 (78%) 723/1060 (68%) 395/736 (54%) 12/26 (46%)

Tubal Reversal Pregnancy Study 2009
Table Of Contents:

Pregnancy Outcomes After Tubal Reversal

143 thoughts on “Tubal Reversal Pregnancy Study 2009 – Tubal Lengths”

  1. Katie says:

    I had eptopic pregnancy in left tube I had an hsg and my report says left tube filled quickly and everything looks good but tube was blocked and I guess cut at the ampulla my right tube is perfectly fine except it says I have a distal blockage because of scar tissue so if my left tube is still in good condition except being cut and blocked at the ampulla (middle)can i have that re open and still get pregnant with a shorter tube

    1. Dr. Monteith says:

      It is possible we can help you with tubal surgery. You would need to send your records to us for a free review. Call us at (919) 968-4656 8am to 5pm eastern standard time and we would be happy to speak with you.

      The following link will answer most of your questions about reversal. This is the MOST HELPFUL INFORMATION to read when considering reversal at our office. Each question has a link to more information about the question: Frequently asked questions about tubal reversal

  2. K says:

    My operative report is stating each tube was cauterized in an approximately a 5 to 6 centimeter segment. Could you please enlighten the odds of pregnancy in my case?

    1. Dr. Monteith says:

      If they truly burned 5 to 6cm then they likely burned too much. I would recommend that you send us your tubal ligation records and we can review them for you without charge. Often patients don’t interpret their records very well and often records have mistakes. You should send your operative note and we can review it for you. We will either tell you that your are not a candidate or we will ask you consider our optional screening laparoscopy procedure. Please call us at (919)968-4656 for more information.

  3. Amarsh says:

    I am 6 weeks pg, just found out a few days ago. What tipped me off was that my bsetras were still tender after 2 weeks, as usually they only hurt the week before af. I also have had bad heartburn, but thought it was due to the spicy food I have been eating lately. I go pee alot, and have feelings of fullness as well as gas. This is baby #5 for me, and so far this one has given me the most symptoms the earliest.As far as negative pg tests, it could be numerous things such as an irregular cycle or too early to show positive on a hpt. You should call your doc and discuss this w/ them as well as ask for tests to check your thyroid, FSH LH levels, etc sometimes these test can pinpoint what’s up with your cycle.Good Luck!

  4. Katrina Wenig says:

    I just got my operative report released to me and I can’t find anything that says how much tube was not effected during the TL. All it says is both tubes were cauterized in it’s midsegment. How do I know if I am a good candidate for a reversal??

    1. Dr. Monteith says:


      Most of these types of tubal ligation can be repaired. You should be a good candidate.

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