Fallopian tubes are slim passages linking your ovaries to your uterus. Each month, an egg moves through them, hoping to meet sperm for fertilization. When things go right, the fertilized egg travels to the uterus to grow into a baby. But if there’s a blockage, it can lead to infertility. Understanding fallopian tube problems is crucial because they affect about 25-30% of infertility cases in women, based on insights from fertility experts like those here at the Cleveland Clinic and Healthline.