Before doing MRI, you need to be prepared psychologically, know the contraindications, check whether you are carrying metal products and other aspects of preparation. 1. Psychological preparation: the examiner should not be too afraid and impatient before doing MRI, regulate his/her mood appropriately, maintain emotional stability, patiently listen to the doctor’s instructions and cooperate with him/her. 2. Contraindications: not everyone can do MRI, if there are pacemakers, intrauterine devices, steel nails and other metal objects in the body, you can’t do this test, so as to avoid danger during the examination. 3. Whether you are carrying metal products: Remember to remove cell phones, coins, watches, lighters, metal jewelry and ferromagnetic items from your body before entering the MRI examination room, or else the uniformity of the magnetic field will be easily affected during the examination, which will cause interference with the examination results and is not conducive to the doctor’s diagnosis of the disease. 4. Others: If the MRI examination of the abdomen is done, it is necessary to abstain from food and drink for 6~8 hours; if the pelvis is examined, in most cases, the examiner needs to hold urine. MRI is a physical phenomenon and is a commonly used clinical test. Before doing this test, you need to know the corresponding precautions. If there is any discomfort, please contact your doctor immediately for prompt treatment.