Infertility, also known as infertility, is called infertility when a woman does not become pregnant after at least 12 months of contraceptive-free sex, and in men it is called infertility. The uterus is located in the middle of the pelvis, with one fallopian tube on each side. The fallopian tubes are divided into the interstitial part, the isthmus, the abdomen, and the umbilical end, which are connected to the uterus in order, and the umbilical end is free and connected to the abdominal cavity. Under normal circumstances, the egg from the ovary is picked up by the umbilical end of the fallopian tube and meets with the sperm ejaculated by the male through sexual intercourse in the abdomen of the fallopian tube, where it becomes a fertilized egg. The egg is then gradually moved medially towards the uterine cavity with the help of the fallopian tube cilia, where it then finds a well-nourished place to settle and develop further, i.e., to implant. Problems in any aspect of the process can lead to infertility. There are many causes of female infertility, including: pelvic factors: abnormal fallopian tubes, tubal inflammation leading to umbilical atresia, tubal blockage leading to infertility; pelvic adhesions, pelvic inflammatory disease, endometriosis, etc. can lead to damage to the function or structure of the fallopian tubes; endometrial lesions such as inflammation, adhesions, polyps, etc. can lead to failure of fertilization or unstable implantation; uterine fibroids, tumors of reproductive organs, malformations of the reproductive tract, etc. can also lead to infertility. Uterine fibroids, tumors of reproductive organs, and malformations of the reproductive tract can also lead to infertility. The factors of male infertility include abnormal semen, abnormal sexual function, and immune factors. In summary, infertility is a group of fertility disorders caused by multiple causes.