Dysphonia attacks 50% of the professors, and if it relate to the work conditions. Vocal nodules are prevalent phonotraumatic injuries. OBJECTIVES: to characterize, in dysphonic professors, the vocal symptoms, co-factors of risk, and videolaryngoscopy. METHODS: 50 taken care of dysphonic professors between 2010 and 2011 in the Unesp-FMB, had filled a protocol and had carried through videolaryngoscopy. RESULTS: 50 professors (46 Women; 4 men), age between 20-39 (n-26), 40-59 (n-22), > 60 (n-2); education level: basic (n-8), medium (n-27), basic/average (n-24), childhood (n-6), superior (n-1); Journey: < 20 hours (n-6), 20-39 hours (n-23), > 40 hours (n-21); Time in the profession: <5 years (n-9), 5-10 (n-9), 10-20 (n-17), >20 (n-15); student for class: <20 (n-5), 20-40 (n-24), >40 (n-21). Medical Licence: 1-3 (n-18), 4-6 (n-7), > 6 (n-6), no one (n-27). Time of dysphonia: < 3 m (n-5), 3m-1 year (n-18), > 1 year (n-27),Frequency of the symptoms: permanents (n-36), sporadic (n-14); Evolution of the symptoms : gradual (n-44), suddenly (n-6); Factors of worsening: vocal abuse (n-45), extreme day (n-46), noise (n-27), pollutants (n-22), others (n-30); Symptoms associates: nasal-sinusal (n-34), gastroesophageal (n-26), auditory (n-10), others (n-18). Symptoms: hoarseness (n-46), effort to speech (n-35), fatigue and fatigue (n-33), cough (n-30), others (n-90). Videolaryngoscopy: nodules (n-18), functionary (n-16), paquidermy (n-9), others (n-13). CONCLUSIONS: the analysis of the questionnaires indicated predominance of the professors between 20 the 39 years, taught in basic and/or average education and extreme hours of working. The vocal symptoms permanent and were related to the overload phonatory and the favorable conditions of the classrooms. Vocal nodules and dysphonia functionaries had been the main videolaryngoscopy diagnostic.