If a child tests positive for blood mycoplasma, it can cause recurrent fever. First of all, positive mycoplasma in children suggests that they are infected with Mycoplasma pneumoniae, which clinically causes fever, cough and other symptoms. If children apply anti-Mycoplasma pneumoniae drugs inappropriately, it will cause Mycoplasma infection is not well controlled, resulting in repeated fever. For example, children are given antibacterial drugs such as cephalosporin or amoxicillin, which are ineffective for mycoplasma infections. Secondly, due to the lack of timely addition of glucocorticoids, some mycoplasma infections are more serious, there will be a high fever persists, this time the children’s mental state is not good, mainly due to mycoplasma infections caused by immunity caused by strong, the need for timely addition of glucocorticoids to inhibit the immune system, the clinic in order to play a good effect of fever reduction.