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Case 1: A 25-year-old patient, who is -working as a shoe worker for five-years, applied to our out-patient clinic complaining about loss of speech şuency, phoneme extension and reiteration as uttering sounds. A year ago the patient’s complaints began with slip of the tongue and diminishing speech şuency over the time.
Case 2: A 19-year-old patient was brought to our service because of using volatile substance (thinner, bally, etc.) and stuttering. As learned from the patient, he has been using a variety of psychoactive volatile substances for three years. In recent times, he augmented the usage of volatile substances and his speech was impaired for the last six months.
Discussion: The causes of adult-onset stuttering may be listed as neurological diseases such as cerebrovascular event, traumatic brain injuries, migraine, neurodegenerative diseases and psychiatric causes such as depression, anxiety and psychoactive substance usage. Chronic usage of toluene is known to cause toxic damage at the myelin sheath and white matter. For adolescents, myelinization has an important place in neuro development process. In this case, exposure to volatile substances can lead to many psychopathological disorders. Accordingly, too many preventive precautions should be taken on this subject.