Mycoplasma pneumoniae antibodies are categorized into two types: IgG antibodies and IgM antibodies, which can be distinguished from negative and positive based on the values of Mycoplasma pneumoniae detected. The normal value of Mycoplasma pneumoniae antibody is negative, which means that the titer of the antibody is below 1:32. Positive antibodies to Mycoplasma pneumoniae are usually seen in children with Mycoplasma pneumonia. This indicator is positive, you need to consider the treatment of Mycoplasma pneumoniae infection, the treatment is generally used macrolides, such as azithromycin, erythromycin and so on. A positive IgM antibody to Mycoplasma can be used as a diagnostic indicator of infection in the acute phase. If the IgM antibody is negative, it does not negate Mycoplasma pneumoniae infection, and IgG antibodies need to be tested. Relative IgG appears later than IgM and requires dynamic observation. A significant increase suggests a recent infection, and a significant decrease indicates a late stage of infection. If the patient is positive for IgM antibodies, continued treatment is recommended.