What are the specific hazards of fallopian tube blockage?

Patient's question:

Patient Age: 30
Patient Gender: Female
What are the hazards of fallopian tube blockage, and what are the causes of it?

Doctor's answer:

1. Infertility, fallopian tube blockage is a common disease in female infertility, with a high incidence rate, accounting for about 50% of female infertility cases. The fallopian tube is the place where sperm and eggs fuse. Once the fallopian tube is blocked, sperm and eggs cannot fuse to form a zygote, which will lead to female infertility.
2. Ectopic pregnancy, when the fallopian tube again appears narrowed and blocked, it will make it difficult for the zygote to move within the fallopian tube. Due to the different locations of fallopian tube blockage and stenosis in each patient, the zygote may implant in other parts of the uterine cavity, resulting in ectopic pregnancy.