The paper deals on the advantages for the rhinopharynx following adenoidectomy. The AA. explain their procedure for its removal under visual control. Both a radiological and microbiological study was done in 90 children waiting for the removal with the aim of realizing the changes derived to the upper air-way. The surgery enhances the adenoidal expression and significatively improves the rhinopharyngeal air-way (p < 0.001). Furthermore the pathogenic flora of epipharynx changes for benefit of the saprophytic flora (p < 0.001). The adenoidectomy is indicated when the adenoidal mass hinder the nasopharyngeal breathing, when causes adenoid outbreaks and also in those cases of stubborn secretory otitis not yielding to conservative treatment.