The most common voice disorder in children is the result of “phono trauma” such as yelling or making loud "play" sounds, throat clearing, and excessive coughing. These voice behaviors cause the vocal folds to close hard against each other, causing blister-like bruises. These bruised areas can harden into callus-like bumps called vocal nodules.
Other causes of voice disorders can include:
- Subglottic stenosis (narrowing of the airway)
- Vocal fold paralysis (immobility of one or both vocal folds)
- Vocal fold cysts (fluid-filled sac)
- Granuloma (area of inflammation in tissue due to injury)
- Papilloma (wart-like growths)
- Laryngeal web (band of tissue between vocal folds)