Mycoplasma 1:320 is significantly higher than normal (<1:32), can be considered to have mycoplasma infection. Mycoplasma 1:320 is the antibody titer of mycoplasma, normal value <1:32, antibody titer ≥1:32 after 2 weeks of infection onset, if the titer gradually increased, more diagnostic value, such as serum mycoplasma antibody ≥1:64, or recovery antibody titer has a 4-fold increase, can be further confirmed diagnosis of mycoplasma infection. The level of titer is not parallel to the severity of the disease, high titer does not mean the infection is serious, if the patient has obvious cough, fever, often need to be combined with chest radiographs, chest CT and other tests to assess the infection, and give anti-mycoplasma infection treatment (such as azithromycin, clarithromycin); although the antibody titer is high in the recovery phase of the disease, but the symptoms are mild, and often do not need special treatment, dynamic follow-up can be. Mycoplasma antibody titer results should be combined with the condition of the professional doctor to make a comprehensive judgment, not self-medication.