The fallopian tubes are two thin tubes, one on each side of the uterus, which help lead the mature egg from the ovaries to the uterus. If conception takes place, the egg is usually fertilized in the fallopian tube. Then, the fertilized egg, or embryo, makes its way through the tube, and eventually implants into the uterine lining.
Blocked fallopian tubes are a common cause of infertility in women.
Sometimes, the fertilized egg will attach itself to the fallopian tube instead of the uterus. This results in an ectopic pregnancy.
During the assisted reproductive technology treatment GIFT, the eggs and sperm are placed within the fallopian tube, in hopes that fertilization will take place in the same area that natural conception occurs. During ZIFT, an already fertilized egg is released in the fallopian tube. ZIFT and GIFT are not commonly done.
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