The cause of mycoplasma infection in children is mainly through droplet transmission and close contact transmission of infection, mostly Mycoplasma pneumoniae infection. 1. Through droplet transmission: droplet transmission is due to the children’s body resistance is relatively poor, so in contact with patients infected with Mycoplasma pneumoniae can be infected with Mycoplasma, it is recommended to wear a mask when you go out and do not go to crowded places to avoid causing infection. 2. Transmission through close contact: Close contact with toys and clothing of children infected with Mycoplasma can lead to the problem of mycoplasma infection itself. Mycoplasma is a special kind of microorganism between cells and viruses. Inhaling droplet secretions from patients’ coughs or sneezes may lead to mycoplasma infections, so it is fundamental to strengthen the body’s resistance and avoid contact with crowds to prevent it. When mycoplasma infection occurs, it is recommended to consult the respiratory medicine department of a regular hospital.