Voice Changes

Overview

Voice changes refer to any noticeable shift in how the voice sounds, including hoarseness, breathiness, a weak or strained quality, a change in pitch, or losing the voice entirely. The medical term for a disordered voice is dysphonia. The voice is produced when air from the lungs vibrates the vocal cords in the voice box (larynx), so anything that affects those cords or the nerves and muscles controlling them can change how a person sounds.

Most voice changes are temporary, arising from a cold, shouting, or overuse, and they improve once the cause settles. However, a change that lasts more than a few weeks, or that comes on without an obvious reason, should be checked, because it can occasionally be the first sign of a problem in the throat, nerves, or vocal cords that needs treatment.

Common Causes

Voice changes have a wide range of causes, most of them benign:

• Laryngitis: Inflammation of the voice box, often from a viral infection or vocal strain, causing temporary hoarseness.
• Voice overuse: Shouting, prolonged talking, or singing that strains the vocal cords.
• Acid reflux: Stomach acid reaching the throat can irritate the vocal cords and roughen the voice.
• Vocal cord nodules or polyps: Growths from repeated strain that change voice quality.
• Smoking and irritants: Tobacco smoke and pollutants that inflame the vocal cords.
• Nerve problems: Damage to the nerve supplying the voice box, sometimes after surgery, or from a stroke or other neurological condition.

Less commonly, a persistent change can stem from thyroid problems or, rarely, a growth on the vocal cords that requires evaluation.

Associated Symptoms

Other symptoms occurring with a voice change can point to the cause:

• Sore throat, cough, or cold symptoms with infection
• Heartburn or a sour taste suggesting reflux
• A sensation of a lump in the throat or frequent throat clearing
• Difficulty swallowing or pain when swallowing
• Vocal fatigue, where the voice tires after talking
• Shortness of breath or noisy breathing

Hoarseness lasting more than two to three weeks, or any voice change with swallowing difficulty, a neck lump, or coughing up blood, should be evaluated without delay.

Diagnosis & Evaluation

A clinician evaluates a voice change by asking how long it has lasted, how it started, and what makes it better or worse. Assessment may include:

• Throat exam: Looking at the throat and feeling the neck for lumps or swelling.
• Laryngoscopy: A thin scope to view the vocal cords directly, especially for persistent symptoms.
• Reflux assessment: Reviewing for symptoms of acid reflux affecting the voice.
• Imaging or blood tests: Considered when a thyroid, nerve, or structural cause is suspected.

Many short-lived voice changes need no testing and are diagnosed from the history and a simple exam.

Treatment & Management

Treatment depends on the cause, and many voice changes recover with simple measures:

• Voice rest and hydration: Resting the voice, drinking fluids, and avoiding shouting or whispering allow inflamed cords to heal.
• Treating infections and reflux: Supportive care for viral laryngitis and acid-reducing measures when reflux is the trigger.
• Avoiding irritants: Stopping smoking and limiting exposure to smoke and dry air.
• Voice therapy: Working with a speech-language pathologist to use the voice more safely.
• Procedures: Removal of nodules or polyps, or treatment of nerve problems, when needed.

Persistent hoarseness without an obvious cause should always be examined before assuming it is harmless.

Self-Care & Prevention

• Stay hydrated and avoid clearing the throat forcefully
• Avoid shouting and prolonged loud talking; use a microphone when needed
• Do not smoke and avoid secondhand smoke
• Manage acid reflux with smaller meals and not eating before bed
• Rest the voice during a cold or laryngitis rather than straining it

When to See a Doctor

See a doctor if hoarseness or another voice change lasts longer than two to three weeks, keeps returning, or comes without a clear cause such as a cold. Seek prompt or emergency care if a voice change occurs with:

• Difficulty breathing or noisy, struggled breathing
• Trouble swallowing or pain when swallowing
• Coughing up blood
• A lump in the neck or unexplained weight loss
• Sudden voice loss with facial droop or weakness, which can signal a stroke

Related Topics

Frequently Asked Questions

References

1. National Institute on Deafness and Other Communication Disorders (NIDCD). Hoarseness.
2. Mayo Clinic. Hoarseness and laryngitis.
3. American Academy of Otolaryngology - Head and Neck Surgery. Hoarseness.
4. MedlinePlus, U.S. National Library of Medicine. Voice disorders.