Etiology of Voice disorders can be subdivided into 3 main groups: There are the organic voice disorders (There are detectable morphological changes in the vocal apparatus), Non-organic (functional) voice disorders (There is no detectable organic pathology in the structure of the larynx) and Minimal Associated Pathological Lesions (MAPLs) (Long-standing, non-organic (functional) voice disorders leading to the creation of detectable organic changes.