The most serious consequence of bilateral blockage of the fallopian tubes is that it leads to infertility. If you have already had children, it is not a big problem. If you have not had children, bilateral blocked fallopian tubes can easily lead to infertility. This is because after entering the body, the sperm penetrates the uterine cavity and reaches the fallopian tube where it unites with the egg to form a fertilized egg. The fertilized egg is transplanted to the uterine cavity after a week or so under the peristaltic movement of the fallopian tube cilia, where the fertilized egg is implanted and develops. If the channel transporting the sperm and egg is blocked, the most serious consequence is infertility. However, some people have inflammation of the fallopian tubes and will have bilateral pain in the adnexal area, causing inflammation of the adnexa, and this time will need to be regulated with medication.