Many parents in the process of taking care of the baby will find that the baby often have fever, in this case will be very anxious, in fact, the baby fever is more causes, common is the cold, bronchitis, pneumonia, bacterial viral infections, etc., these will lead to persistent baby fever, generally clear the cause of symptomatic treatment, fever time will not be too long. 1, the fever caused by the cold, the initial period does not lead to other problems, after giving cooling intervention, generally, if two or three days will reduce the fever. 2, high fever caused by bronchitis or pneumonia, because many times parents are not sure why their children continue to have a fever, just think it is a cold, children in a long time when the cold is not effectively controlled easily developed into bronchitis, pneumonia and other problems, resulting in the persistent fever of the child, this time if the bacterial infection, given effective antibiotic treatment, but also one to two days will be fever, the course of the disease more in The child will recover in a week or so. In general, it depends on the cause of the fever, where the infection is, what the pathogenic infection is, and the duration of the fever. It is important to seek medical attention when you are not sure.