To check for female infertility: The first point is to perform a pelvic examination, which includes a pelvic ultrasound and an internal examination. The pelvic ultrasound looks at the basic condition of the developing uterus. The internal examination looks at the size and position of the uterus, the presence of cervical erosion, the presence of vaginal infection, and the presence of pressure pain in the uterine body and adnexal area. Next, blood hormone measurements, chromosomal analysis and immunological tests are performed, and hormone measurements are the six sex hormone tests. If there are special indications, such as primary amenorrhea and abnormal genital development, a karyotype test should be performed. The second point is the examination of anti-sperm antibodies and anti-cardiolipin antibodies, which have a negative impact on pregnancy if they are present in the blood. The third point is continuous ultrasound monitoring of follicular development and ovulation, which usually starts on the 8th day of menstruation when the dominant follicle is close to 18-22mm in diameter and the follicle disappears and fluid appears in the pelvic cavity. The fourth point is to perform a tubal patency test. Generally speaking, there are two types of tests, one is uterine tubal lavage and the other is hysterosalpingography, both of which have their own advantages and disadvantages.