Altered vocal quality, pitch, loudness, or vocal effort that impairs communication as assessed by a clinician and/or affects quality of life.
Individuals who professionally use their voices such as singers, teachers, and call-center operators, certain age groups including children, older persons, and smokers.
Adapted from Stachler RJ, Francis DO, Schwartz SR et al. Clinical Practice Guideline: Hoarseness (Dysphonia) (Update). Otolaryngol Head Neck Surg. 2018; 158(1 Suppl):S1-S42.