Mycoplasma infections in children usually involve the respiratory tract, causing an irritating cough, but also coughing up sputum, fever, and sore throat. Mycoplasma can infect the respiratory and reproductive tracts to cause disease. In children, mycoplasma infections often involve the respiratory tract and can be spread through droplet transmission, such as Mycoplasma pneumoniae can cause acute bronchitis and pneumonia. Mycoplasma infections in children can cause irritating dry cough or even persistent cough, but also cough sputum, fever, sore throat, generalized weakness, headache and other symptoms, and in severe cases, there are even respiratory difficulties, wheezing, combined with pleural effusion and pulmonary atelectasis. Dry or wet rales can be heard in a few cases, and the signs and symptoms are often inconsistent. If the above symptoms occur in children, they should go to the hospital in time to see a doctor to identify the cause and then give targeted treatment.