Recurrent fever in children may be caused by factors such as poor immunity of the child, ineffective treatment or severe illness. 1. If the child’s immunity is poor, it may lead to recurrent infections, thus causing recurrent fever symptoms. 2. Failure to treat the fever in a timely manner, irregular treatment, or failure to choose the right medication for the cause of the fever can lead to poor control of the child’s condition and recurrent fever symptoms. 3. If the child’s condition is serious and there is no obvious effect on the treatment medication, it will lead to the recurrence or aggravation of the child’s fever and other symptoms. Therefore, when your child has a recurring fever, you should bring your child to the pediatrician in time to clarify the specific cause of your child’s fever and give him or her the appropriate treatment for the cause.