Introduction: In this study, we aimed to investigate thelaryngeal electromyography (L-EMG) findings of organic andfunctional laryngeal pathologies that affect superior laryngealnerve in patients with hoarseness.Methods: All patients underwent routine examination andvideolaryngoscopy using a 70-degree 4-mm telescope. L-EMGstudies were performed via portable Dantec™ Keypoint® EMG/NCS/EP Workstation with 2-channel options. For EMG, 20 mmbipolar concentric needle electrodes were used. Because theprocedure was relatively painless and local anesthetics couldaffect the function of the muscles, no local anesthesia wasadministered to the patients. Cricothyroid muscle (CTM) andthyroarytenoid muscle (TAM) were tested by electromyographymethod.Results: Twenty-four patients with hoarseness were includedin the study. Eleven patients (46%) were male and 13 (54%) werefemale. The mean age was 37.62 years (range: 15-57 years).A total of 96 muscles were examined with EMG. L-EMG waspathological in 15 patients (62.5%) and bilateral pathologywas observed in three patients. Twenty muscles (20.8%) weredetected as pathological, with neurogenic involvement in 20muscles (70%), poor activity or no activity in four muscles (20%)and dystonic activity in two muscles (10%). Eight right CTMs (fiveneurogenic involvement, two poor activity, one no activity) andfive left CTMs (two neurogenic involvement, one poor activity,two dystonic activity) were pathological. TAMs had neurogenicinvolvement on the right side in four patients and on the leftside in three patients.Conclusion: It should be kept in mind that L-EMG may bean adjunctive application for detecting pathologies withneurogenic or myogenic involvement that affect the superiorlaryngeal nerve and lead to hoarseness.