It is a method of examining whether the fallopian tubes are patent, the site of obstruction and the morphology of the uterine cavity by injecting contrast into the uterine cavity and fallopian tubes through a catheter and using an X-ray diagnostic instrument to perform X-ray fluoroscopy and film taking. The patient does not feel very painful during the examination, and the doctor will do everything possible to reduce the pain to the patient during the clinical imaging operation. How long does it take to perform a tubal imaging test? This mainly depends on the doctor’s proficiency, the patient’s cooperation and many other factors. 1, patient cooperation or not: some patients do not cooperate with the doctor, sometimes shy, embarrassed, etc., seriously affect the doctor’s operation, so the speed becomes slower. 2, the doctor’s proficiency: it plays a decisive factor in the length of imaging time, tubal imaging is a professional examination of the degree of tubal patency, only professional doctors can have more materials, relatively skilled, especially good at interventional treatment, the choice of imaging catheters are also more, so, to do tubal imaging, please choose a professional doctor to do. This can reduce the pain, speed up the process, and check in place, why not. 3, the cervical opening is tight and requires dilation, which increases the steps of imaging and affects the speed. Generally speaking, professional doctors, the time required to do the operation of contrast examination is only 5 to 10 minutes to complete the quality, and unique operating techniques to reduce the pain of patients. 4, uterine factors: the patient itself has uterine diseases, such as fibroids, congenital small uterus, uterine cavity adhesions, or the cervical opening is too tight and uterine flexion is too large, etc., in the intubation increased the difficulty, so become slower, if inexperienced or even can not make the contrast. It can only be done by experienced doctors. Indications for hysterosalpingography: It is important to find the right indications before any test, so that the patient’s pain can be reduced and the cause can be found. The indications for hysterosalpingography are as follows: 1. Infertility: The World Health Organization (WHO) 1986 standard: A person who has been married for one year without using contraception and has not had a pregnancy can be diagnosed with infertility. Tubal imaging can be done to understand the cause of primary or secondary infertility. It can not only understand whether there are congenital malformations or pathological conditions present in the uterus and fallopian tubes, but also whether the tubes are patent, the degree of patenting and the site of blockage, so as to find the cause of infertility. In some cases, after iodine oil imaging of the uterus and fallopian tubes, it is possible to increase the degree of patency of the mildly adherent and blocked tubes and to conceive. 2, tubal pregnancy: More than 90% of ectopic pregnancies occur in the fallopian tubes. One of the main causes of tubal pregnancy is the poor patency of the fallopian tubes due to various reasons, in order to reduce the reoccurrence of ectopic pregnancy, a transx-ray hysterosalpingogram should be done to understand the patency of your fallopian tubes and treat them accordingly. 3. Abnormal uterine bleeding: Find the cause of abnormal uterine bleeding, understand the condition of the uterine mucosa and uterine cavity, and determine whether the abnormal bleeding is due to endometrial polyps or submucosal fibroids. 4, tubal recanalization: for those who want to do recanalization after tubal ligation, it is necessary to understand the condition of the uterine tubes to decide whether recanalization surgery can be done. 5.Chronic pelvic inflammatory disease: observe the distribution of iodine oil or pantethine in the pelvic cavity to diagnose pelvic inflammatory disease and the presence of serious adhesions. 6.Tumor: Observe the effects of uterine fibroids, adnexal tumors and other pelvic organs on the uterine tubes. 7, malformation: longitudinal uterus, diagnosis of uterine malformation such as bicornuate uterus, etc. 8, foreign body: diagnosis of metal intrauterine device ectopic, etc. 9, adhesions: tubal adhesions, cervical adhesions, blockage, diagnosis of uterine adhesions, etc.