Mycoplasma pneumonia is a respiratory disease caused by mycoplasma infection, which is neither a bacteria nor a virus. The main symptom of mycoplasma pneumonia is cough, less coughing sputum, more coughing at night, or fever and chest pain. Physical and chemical examination in addition to some of the common tests used in respiratory medicine such as chest X-ray, blood routine, etc., but also to do a special Mycoplasma pneumoniae test, this test is not a pathogen detection, but an antibody reaction in the body after infection with mycoplasma, so the judgment of this test index needs the help of a doctor. Normal at 1:40 or less; 1:80 is positive; positive can only indicate that the infection has been mycoplasma, how long can not be judged, to determine whether recently infected with mycoplasma, depending on the clinical symptoms, some patients also need to do another test in about ten days to see if it has changed, there are changes, especially the ratio increases can indicate the recent mycoplasma infection. Mycoplasma infection, the treatment is not complicated, according to the condition of the choice of macrolides intravenous or oral medication, generally will soon recover. It is important to remind you that, as we said, the Mycoplasma pneumoniae test is an antibody response in the body, so the response is slow. It takes about a week after the patient is infected with mycoplasma to be detected, and it takes some time for this test result to return to normal after the clinical symptoms are cured. Therefore, doctors usually do not use it as an indicator of a cure for mycoplasma infection. The need for repeated tests will be determined by the doctor depending on the severity of the patient’s illness, the patient’s physical condition, and the course of treatment.