The main causes of mycoplasma pneumonia in children include the following: 1, due to the child’s own physique, if the child’s immune function is poor, especially belong to the deficiency of gas or allergies, this time children are often very easy to suffer from mycoplasma pneumoniae infection. 2, improper care, if children usually blow, cold or too much exercise, resulting in fatigue, these triggers will cause pneumonia, mycoplasma pneumoniae to take advantage of the situation. The children’s pneumonia can be caused by the presence of Mycoplasma pneumoniae. 3. Close contact with children suffering from Mycoplasma pneumoniae infection can lead to cross-infection of children with Mycoplasma pneumoniae through droplets and other means of transmission.