Precautions before tubal iodine contrast examination: 1. The operation should be performed within 3-7 days after menstruation, and sexual intercourse and bathing are contraindicated during the examination cycle. 2. The examination should be performed to ascertain the absence of active inflammation in the reproductive tract, and should not be performed during the acute phase of various diseases. 3.The body temperature on the day of examination should be lower than 37.5 degrees Celsius. 4. If you have a history of malignant tumor of the uterus, pelvic tuberculosis, etc., you should explain to the doctor. 5.If there is a history of iodine allergy, this test cannot be done. 6. Pregnancy must be excluded before the test. Precautions after tubal iodine contrast examination: 1. Sexual intercourse and tub bathing are prohibited for 2 weeks after contrast examination. 2. Use antibiotics as appropriate to prevent infection, usually 2-3 days orally. 3. A small amount of vaginal bleeding within one week of the imaging test is normal if there is no other discomfort, but if the bleeding exceeds the amount of menstruation or there is other discomfort, you should consult a doctor. 4. It is best to use contraception for 3 months after the imaging test to reduce the possible effects of X-ray exposure. 5. The test is sometimes repeated if necessary because of the illusion of tubal incompetence caused by tubal spasm.