Whether 35 weeks preterm babies need to do nuclear magnetic should be decided according to the baby’s clinical manifestations and other indications, generally do not need to do, if accompanied by hypoxia and other conditions, can be under the guidance of the doctor to carry out the relevant examination. Preterm babies born at 35 weeks generally do not need routine MRI examination, but if the preterm baby has hypoxia during delivery, postnatal fetal high bilirubin leading to bilirubin encephalopathy, postnatal fetus has symptoms such as dull eyesight, abnormal activities, etc. to rule out intracranial injury and other congenital diseases, MRI examination can be performed. The advantage of MRI is that there is no radiation, and premature babies at 35 weeks of gestation can undergo MRI when there are indications for the examination, which will help to find the lesion in time, diagnose the disease and treat it early, thus improving the baby’s prognosis. You should consult your doctor to see if you need to have an MRI, and have it done under your doctor’s supervision to detect any abnormalities in your baby and have it treated early.