Infertility makes a lot of women who are at the right age to get pregnant sad, trying a variety of methods to get pregnant with a baby but never have good news. Female infertility factors account for more than 40% of all infertility causes. After long-term medical research and extensive clinical experience, the causes of female infertility can be broadly divided into the following categories. As we all know, women must ovulate in order to get pregnant. If there is hormonal imbalance, it will not be possible to promote egg maturation and ovulation, which may cause infertility. It has been found that about 10-15% of infertile couples have ovulation disorders. There are many clinical factors that can cause ovulation disorders, such as severe malnutrition, allergies, malabsorption, excessive weight loss, work stress, intense exercise, exposure to chemicals or radiation contamination, etc. All of these can cause ovulation disorders. Certain diseases can also affect ovulation, even if no eggs are released. For example, “polycystic ovarian disease” is mainly due to hormonal imbalance, resulting in ovulation disorders and even infertility. In addition, some chromosomal abnormalities, such as Turnet’s syndrome, or early onset ovarian failure, can cause no eggs to be released at all. The cervix is the first barrier for sperm to enter the uterine cavity. Sperm must use the cervical mucus as a medium to move and cross the cervical canal into the uterine cavity. If there is a problem with the secretion, pH or consistency of the cervical mucus, sperm cannot pass through the cervix, which will also cause infertility. Third, uterine factors The entire sophisticated and complex endocrine changes, including the inferior optic thalamus, the subiculum and the ovaries, must function in harmony to have perfect reproductive function. The hormones secreted by the ovaries act on the endometrium, making it proliferate and thicken, mainly to provide a fertile environment for the fertilized egg to develop and grow. If there is a problem with the reproductive endocrine system, ovulation may be affected or the fertilized egg may not be able to take root properly. In some women, the corpus luteum is not fully functional and therefore too easy to conceive. In normal women, the luteal phase should last 12-15 days. If the high temperature period is less than 10 days when the basal body temperature is measured, luteal insufficiency should be considered. If the fallopian tubes are not open, the sperm and eggs cannot pass smoothly, so of course, pregnancy is impossible, and there is even the fear of pregnancy outside the womb. Only a very small number of women have tubal stenosis, obstruction or even lack of tubal due to congenital malformation. The vast majority of patients have tubal obstruction due to the sequelae of bacterial infection, such as pelvic inflammatory disease, tuberculosis transfer infection or infection after abortion. As all female internal reproductive organs are located in the peritoneal cavity, if there are physical or mechanical factors in the peritoneal cavity that hinder the conception process, it may also affect conception, such as pelvic adhesions, endometriosis, etc., which cause changes and damage to the anatomical structure of the fallopian tubes and may cause infertility. In addition, some patients with unexplained infertility, i.e., those for whom no clinical cause can be found, have been found in medical research to have inflammatory chemicals in their peritoneal fluid that can affect ovulation, tubal peristalsis, and other conception processes, thus making it difficult to conceive. We hope that this article will help you to treat and prevent female infertility!