If you need to have a tubal iodine imaging because of infertility: 1. Come to the hospital 3-5 days after menstruation for examination, except for inflammation of the reproductive tract. 2. Do not have intercourse after menstruation to avoid infection which may affect this examination. 3.Foreign patients try to come to the hospital in the morning for examination and do it in the afternoon after confirming no inflammation of the reproductive tract. 4.For other reasons: Our hospital does imaging in the afternoon of 1, 3 and 5 every week. 5, Friday afternoon, Saturday morning do not come to the examination appointment, delay your time. 6.Before coming, bring your previous medical records and test results for reference.