X-ray hysterosalpingography is an X-ray examination method in which contrast is injected into the uterine cavity through the cervical opening to show the cervical canal, uterine cavity and both fallopian tubes. It can not only clarify the site of tubal obstruction, but also visually show certain lesions in the fallopian tubes and uterine cavity, and is now an important method to evaluate the patency of the fallopian tubes in infertility diagnosis. The fallopian tubes are an important pathway for sperm-egg union and transport of sperm and fertilized eggs. If ovulation monitoring is normal and the male partner’s semen examination is normal, tubal function needs to be evaluated, and hysterosalpingography under X-ray is often used clinically. Hysterosalpingography is usually performed within 3-7 days after menstruation, and sexual intercourse is prohibited. Currently, the contrast agent we use is aqueous iodine, which does not require preoperative skin test and has fast diffusion and absorption. Postoperative precautions: prophylactic use of antibiotics, abstain from sexual intercourse and tub bath for one month, try to avoid pregnancy in the same month.