According to the different parts of the examination, the precautions for imaging examination are also different. For example, sexual intercourse is prohibited within one month of tubal imaging, and do not take a basin bath; cardiac imaging requires observation of complications and adverse reactions, and regular rechecking of electrocardiogram, blood routine, and so on. Intravenous urography and barium gastroenterography need to drink more water and urinate more. 1. Tubal imaging: after tubal imaging, it is forbidden to take pelvic bath within two weeks, forbidden to have sex within one month, and it is better not to get pregnant within three months, and some patients may have a small amount of vaginal bleeding as a normal phenomenon, no need to worry. If there is a large amount of bleeding, accompanied by severe abdominal pain, etc., then you need to consult a doctor in time. 2. Cardiography: After cardiography, patients need to rest in bed for more than 12 hours, pay close attention to the vital signs of the patients and whether there are any uncomfortable symptoms, and also need to observe whether the puncture site is good, with or without redness and swelling, etc. Patients with non-cardiac failure can also have a good cardiographic examination. If the patient is not in heart failure, he can drink more water to help the discharge of contrast medium. 3. Intravenous urography: After intravenous urography, the patient should be observed in the hospital for 30 minutes to see if there is any allergy and other uncomfortable symptoms, and also drink water to discharge the contrast agent as soon as possible. 4. Gastrointestinal barium meal imaging: after gastrointestinal barium meal imaging patients may have abdominal pain symptoms, you can take local hot compresses to relieve the pain, and also need to drink more water, and maintain a high-fiber diet with appropriate exercise to help the contrast agent as soon as possible to discharge the body, and if there is any other discomfort, you need to go to the hospital as soon as possible for examination. It is recommended that patients should consult their doctors about the precautions to be taken before having an imaging and follow the requirements.