The purpose of MRI examination of prostate is mainly to identify whether there is any tumor tissue in the peripheral band of prostate, i.e. it is a more reliable imaging index for prostate cancer diagnosis. Precautions: 1. MRI is contraindicated for any metal objects. If there are metal fixtures in the body, it is recommended to consult the doctor whether it is possible to perform MRI, because there is a high-energy magnetic field inside the coil during the MRI. If there is any metal substance, it can produce magnetic suction effect and affect the health of patients.2. Prostate MRI examination, need to hold urine under the state of examination, that is, the bladder needs to be filled with appropriate urine, in order to distinguish between bladder tissues and prostate and other demarcation lines, so the examination needs to be stored in the bladder with a certain amount of urine.3. MRI examination, into the magnetic coil of the nuclear patients need to be psychologically prepared for the magnetic coil, and the nuclear coil and the relatively darker, if the If the nuclear magnetic energy is large, the MRI examination will be completed in a faster time. However, if the energy is small, such as 0.5T MRI, the examination will take slightly longer. MRI is contraindicated in patients with claustrophobia inside the coil.