Magnetic brain examination is the use of magnetic field to scan the brain, will not cause any side effects to the baby, only in the nuclear magnetic brain examination of the baby’s degree of cooperation is required to be higher, so for younger babies generally have to take sedation measures. However, sedative drugs generally last for a short period of time and are safe for babies without side effects, so parents do not need to worry too much about the so-called side effects when they need to undergo an MRI of the brain. MRI of the brain has a very good resolution of the structural changes in the brain, as well as the development of the brain nerves, myelination of the brain nerves, and the white matter of the brain, which is very helpful in the diagnosis of brain disorders.