Iohexol imaging does not usually unblock the fallopian tubes; iohexol imaging is used to find out if the tubes are open, as well as the location of the blockage and the shape of the uterine cavity. Iohexolography utilizes iohexol injections and thus is used for uterine tubal imaging. Iodinol is injected into the fallopian tubes and the uterine cavity through a catheter, and the tubes are examined under X-ray visualization to check the patency of the fallopian tubes, the location of the blockage, and the morphology of the uterine cavity for uterine malformations, uterine adhesions, and submucosal muscles of the uterus. Therefore, iohexol is not effective in unblocking the fallopian tubes. Some patients may experience adverse reactions such as nausea, vomiting of blood and dizziness after iohexol imaging. People with severe thyroid disease and history of severe allergy are forbidden to undergo iohexol imaging so as not to damage their health. For patients who want to unblock the fallopian tubes, they can take into account their own situation, go to regular hospitals, and take relevant treatments under the guidance of doctors. In daily life, you need to ensure sufficient rest time, do not overwork.