HOARSENESS
Allergic rhinitis.
Infections (laryngitis, epiglottitis, tracheitis, croup).
Vocal cord polyps.
Voice strain.
Irritants (tobacco smoke).
Vocal cord trauma (intubation, surgery).
Neoplastic involvement of vocal cord (primary or metastatic).
Neurologic abnormalities (multiple sclerosis, ALS, parkinsonism).
Endocrine abnormalities (puberty, menopause, hypothyroidism).
Other (laryngeal webs or cysts, psychogenic, muscle tension abnormalities)