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Voice Disorders. A voice disorder is when the voice has a problem with pitch, volume, tone, and other qualities. These problems occur when the vocal cords don't vibrate normally. Your voice is the sound that air makes when it is forced out of your lungs and passes over your vocal cords.
Nodules, Polyps and Cysts. A common cause of voice problems is one or more benign (non-cancerous) lesions on the vocal fold. A lesion is a structural defect -- an irregular or abnormal area of tissue -- that can easily disrupt the normal functioning of the vocal folds and result in symptoms of a voice disorder.