It is not harmful for your child to have a standardized MRI of the brain under the guidance of a doctor. MRI is a new imaging technology, MRI is magnetic field imaging, and there is no radioactivity, it is harmless to the body and safer. MRI can examine the brain, thyroid, liver, gallbladder, spleen, kidneys, ovaries, prostate, heart and large blood vessels, etc. This kind of examination has faster imaging, high tissue resolution and clearer images, which can detect some early lesions that are not easy to detect. Children should actively cooperate with the doctor when having an MRI of the brain. In addition, because metal can interfere with the magnetic field, all metal objects on the body should be removed before the examination, and if the child is relatively small and cannot cooperate with the doctor, sedative medication is also needed when necessary. Although there is no harm in having a child’s brain MRI done, it should be done as prescribed by the doctor and excessive testing is not recommended.