Female factors account for 40% to 55% of couples with infertility. Tubal factors and ovulation disorders are the two most important factors, each accounting for 40%. Other factors include uterine factors, cervical factors, immune factors, etc. These account for about 10% and unknown causes account for 10%. The fallopian tubes play a very important role in transporting sperm and fertilized eggs, and if they are dysfunctional or the lumen is inaccessible, infertility can result. Ovulation disorders are also common among women nowadays, including endocrine disorders or abnormalities due to various reasons, and luteal insufficiency can also affect the implantation of the embryo sac and lead to infertility.