Usually, MRI is very harmless to human body, but some people will be panic when doing MRI, and even cannot tolerate the loud sound of MRI, some people will interrupt the examination, this situation is related to mental tension or body discomfort. Earplugs can often be used to relieve the mental tension caused by the loud sound and to ease the effects of the MRI on the person. MRI is not an examination by radiation, there are no rays, so there is no radiation to the human body, only the sound can cause panic in some people. By raising awareness of MRI and also increasing confidence in the examination, panic and discomfort can be avoided and the examination can be completed.