Due to the increasing pressure on women nowadays, the incidence of infertility is increasing year by year. So far, infertility has become a social problem. If a woman is not pregnant after marriage without contraception, she should pay attention to whether she is suffering from infertility, and then she needs to go to a professional gynecological hospital for examination. Then, there are several routine examinations that need to be done for female infertility: 1. Systematic examination In addition to the general examination, the reproductive system examination should be done. In addition to general visual examination and palpation, vaginal speculum examination and internal examination (double or triple diagnosis) should be done to get a preliminary understanding of the general situation of the vagina, cervix, uterus, fallopian tubes, ovaries and pelvis, such as whether the size and position of the uterus are normal, whether there are lumps and pressure pain in the uterus, fallopian tubes and ovaries, whether there is painful lifting of the uterus, and the mobility of the adnexa. 2. Presumption of ovulation and prediction of ovulation period: can be determined by basal body temperature measurement and cervical mucus examination or hormone measurement. 3.Endometrial examination: If necessary, biopsy can be performed to understand the functional status of the endometrium, and the examination is also a reliable method to understand the presence or absence of ovulation or the functional status of the corpus luteum, as well as the size of the uterine cavity to exclude uterine cavity lesions such as tuberculosis and fibroids. 4.Endocrine function measurement: such as serum estrogen and progesterone level measurement at different times of menstrual cycle to understand ovarian function; basal metabolic rate measurement to understand thyroid function; adrenal function test and serum lactogen measurement, etc. 5, tubal patency examination: including tubal ventilation or fluid examination and hysterosalpingography, mainly to understand whether the fallopian tubes are patent or not, as well as whether the uterine tubes are normally developed and whether there are deformities. They are also useful for the treatment of tubal incompetence (e.g. mild adhesions). 6. Immunological examination: To understand the presence of anti-sperm antibodies, in addition to anti-sperm antibody determination, indirectly through post-coital test and in vitro sperm penetration test, etc. 7.Cranio-cerebral (pterygoid) X-ray examination: to understand whether there are tumors or other lesions in the pituitary gland. 8.Chromosome examination: some infertility cases are related to the presence of anti-sperm antibodies in the body, so sometimes the relevant immunological examination is also needed.