OBJECTIVE: THE MAINS ENDOSCOPIC FINDINGS RISE IN AIR ROUTES AND DIGESTIVE PATIENTS WHO SOUGHT CARE OTOLARYNGOLOGIST SPECIALIST OF COMPLAINT WITH MAJOR HALITOSIS. MATERIALS AND METHODS: THE CHARTS WERE SELECTED FOR 53 PATIENTS AGED 18 TO 69 YEARS OF BOTH GENDER SERVED BETWEEN JANUARY OF 2010 TO DECEMBER OF 2011 WITH MAJOR COMPLAINT HALITOSIS. ALL WERE PREVIOUSLY SERVED BY DENTIST DENTAL CAUSES AWAY. PATIENTS WERE THEN EVALUATED BY VIDEO-NASAL ENDOSCOPY, VIDEO PHARYNGOLARYNGOSCOPY AND ENDOSCOPY. PATIENTS WERE DIVIDED INTO GROUPS AS THE CAUSES IN (1) NASAL-SINUSAL, (2) ORAL, (3) PHARYNGOLARYNGEAL,(4) DIGESTIVE. RESULTS: MAJOR FINDINGS IN NASAL-SINUSAL PHARYNGOLARYNGEOENDOSCOPY AND WERE DEVIATED SEPTUM, INFERIOR TURBINATES HYPERTROPHY, TONSILS WITH CASEUM, TONGUE AFECTIONS, LARYNGITIS FURTHER SIGNS AND REFLUX PHARYNGOLARYNGEAL. IN EXAMS UPPER ENDOSCOPY WERE FOUND GASTRITIS, HYPOFUNCTION CARDIA, HIATAL HERNIA AND SIGNS OF ESOPHAGITIS. CONCLUSION: THE ENDOSCOPY EXAMINATIONS WERE MAJOR RESEARCH AND DEFINITION OF THERAPY FOR PATIENTS WITH HALITOSIS, ESPECIALLY WHEN THERE IS EVIDENT CAUSE DENTAL.