Five-month-old baby did a brain CT, the impact on the body is not great, parents do not need to worry too much. Five-month-old baby if occasionally do a brain CT, not often use, this use of the frequency is not high, the radiation dose will be relatively small, generally have no effect on the body, this amount of radiation baby body can tolerate. The amount of radiation can be tolerated by the baby’s body. Brain CT will only affect the baby’s body if it exceeds a certain period of time or amount of radiation. If the baby is needed because of a medical condition, you can use brain CT for examination under the guidance of the doctor, only once, the use of infrequent, generally does not have a great impact on the baby’s body.