Tubal factor is a partial or complete blockage of the fallopian tubes, which prevents or hinders the egg and the sperm from meeting. Its main cause is a history of pelvic inflammatory disease from untreated STDs, especially chlamydia. Treatment can be tubal surgery in selected cases, but IVF is frequently the most direct path.
When fertilization happens, it occurs in the fallopian tube, not in the uterus. A tube able to pick up the egg is one of the seven things that have to work in sequence for a pregnancy, and the fertilized egg then travels down the tube toward the uterus, a trip of 5 to 7 days.
The hysterosalpingogram (HSG) is an X-ray procedure in which contrast is injected into the uterus and tubes. It shows whether the tubes are patent (open) and identifies changes in the uterine cavity. It is done between day 7 and day 12 of the cycle, after your period and before ovulation.
In a workup without red flags, the HSG usually comes in months 2 to 3, and the book is clear: don't skip it. When there is strong clinical suspicion, a diagnostic laparoscopy (minimally invasive surgery under general anesthesia) allows adhesions and endometriosis to be seen and treated.
The book says to see a specialist right away, without waiting 12 or 6 months of trying, if you have:
A previous ectopic pregnancy raises the risk of another one and can point to tubal damage, so the next pregnancy needs early monitoring. In early pregnancy, severe one-sided abdominal pain, dark vaginal bleeding, shoulder pain, or dizziness with pallor and a rapid heartbeat call for immediate evaluation. If you suspect an ectopic, don't wait for your next appointment: go straight to an emergency room with gynecology services.
As for treatment, tubal surgery is an option in selected cases. In IVF, the eggs are fertilized in the lab and the embryos are transferred to the uterus, and the book calls it frequently the most direct path for tubal factor. Which one fits your case is a decision to make with your specialist.
Tubal factor is diagnosis number 4 in Chapter 33 of Map to the Positive, in Station IV (Signs). That station also covers every test of the advanced workup, the red flags that should not wait, the treatment ladder and a phase-by-phase guide to IVF. Station V then covers the first weeks after a positive, including the warning signs of the first trimester.
Take 30 days. If it does not give you more clarity than everything you have read for free so far, ask for a refund and you get every cent back. We cannot promise you a pregnancy. We can promise you will not be guessing.
References: ESHRE Guideline on Ectopic Pregnancy (2020).