Objective: To research the pathogenic microorganism characters of chronic pharyngitis.
Method: Samples taken from pharyngeal swab from patient with chronic pharyngitis were routinely cultured; mp-DNA were detected by polymerase chain reaction (PCR).
Result: Of all the cases, 5 patients were DNA(+), among which 3 patients got obvious effect after 2 weeks treatment. The bacterial abnormally was present in 15 patients (31.5%), among which 6 patients got obvious effect and 2 patients got no effect after 2 weeks treatment.
Conclusion: The pathogenic abnormally may be present in some patients with chronic pharyngitis, most of which appeared to be an internal disorder of the proper microflores. C. pneumoniae may be an aetiological agent for chronic pharyngitis. An appropriate antimicrobial treatment should be considered in some cases.