[Bacterial flora as a potential etiopathogenic factor for nasal polyps]. 
Nasal polyps develop in patients with disturbed local homeostasis of nasal mucosa.  Research of Bernstein and Stoop showed the influence of inflammation of nasal mucosa on growth of nasal polyps.  Bacterial and viral infections play significant role in development and intensification of inflammatory and immunological process.  Many bacteria produce factors which damage cilia cells, cause dyskinesis of cilia and destroy respiratory epithelium.  Disturbed muco-ciliar cleaning permits bacteria to penetrate through mucous layer and facilitate their adhesion and colonization on the cells of respiratory epithelium.  Adhesion and successive colonization with bacteria multiplication can lead to inflammatory process.  Nose swabs results were different in each examined group.  The aim of this work was to define bacterial flora in patients with nasal polyps and in patients after polypectomia and to compare it to bacterial flora in healthy patients.  Nose swabs were performed in 51 patients with nasal polyps before polypectomia and additional in 15 patients after polypectomia.  25 healthy medical students were a control group.  The patients were divided into two groups: I. patients with nasal eosinophilic polyps, II.  patients with nasal neutrophilic polyps.  In the group of patients with both neutrophilic and eosinophilic polyps dominating bacterial flora included bacteria which usually are the cause of inflammation.  In the group of patients after polypectomia bacterial flora was not different from that which was found in patients with polyps.