Pregnancy is a physiological process that takes place in a woman’s body. Therefore, the normal reproductive function of a woman is directly related to the successful completion of conception. If the ovaries are not ovulating, the fallopian tubes are blocked, the cervix is blocking the passage of sperm, or the uterus is not able to “lay”, any of these will have a direct impact on conception. During the consultation, it is important to cooperate with the doctor for a general physical examination and gynecological examination to understand the development of the whole body and the condition of the internal and external genitalia. Through gynecological examination, the doctor can find out the size and position of the uterus, the presence of inflammation in the pelvic cavity, especially whether there are signs of inflammation in both fallopian tubes, and whether there are swellings in the lower abdomen. Infertile women should answer the doctor’s questions truthfully, including menstruation, sex life and other conditions, and provide information about special diseases in the family of both spouses, their past medical history, occupation and hobbies, etc. After understanding the above basic conditions, some further special examinations are needed according to the doctor’s arrangement. When a woman’s fallopian tubes are too long, too thin, twisted, deformed, or not open, tubal obstruction can often prevent the movement of sperm, eggs, and fertilized eggs. Lesions of the fallopian tubes can be diagnosed by tubal imaging. If necessary, the diagnosis can be confirmed with laparoscopy, hysteroscopy or selective tubal imaging. In addition, hysterosalpingography or hysteroscopy can also diagnose lesions in the uterine cavity. Ovarian function tests can determine the ability to ovulate and whether the corpus luteum is functioning normally after ovulation. Indirect observations such as basal body temperature, cervical mucus changes, periodic vaginal smears, and endometrial examination are often used to speculate on the presence or absence of ovulation and luteal function. If necessary, blood levels of sex hormones can be measured, and follicular development and ovulation can be observed by ultrasound or laparoscopy. In some infertile women, special tests such as anti-sperm antibodies in blood and cervical mucus, endometrial antibodies, toxoplasma antibodies, anti-Ureaplasma and Chlamydia tests in cervical mucus, as well as blood group and chromosome tests are also needed to find out the cause of infertility and take targeted measures for treatment. The main factors leading to infertility are: 1) ovarian lesions, hypothalamic pituitary disorders and systemic diseases causing ovulation; 2) tubal factors are the most common factors leading to infertility; 3) uterine cervical and vaginal factors such as congenital malformation of the uterus and submucosal fibroids; 4) infertility caused by alloimmunity and autoimmunity.