About 20-25% of all cases of infertility are related to tubal factor infertility. Tubal factor infertility may be due to one or more of the following reasons:

1. Completely blocked fallopian tubes, either one or both, by scar tissue inside the tube or by prior surgery such as tubal ligation
2. Tubal scarring without blockage of the tube but with damage to the cells that line the inside of the fallopian tube
3. A disturbance in the architecture of the tube such as with a hydrosalpinx (water-filled tube) or scar tissue outside of the tube which distorts the tube (more…)