Vocal Cord Polyp

What a vocal cord polyp is

You have two vocal cords (vocal folds) in your larynx, or voice box. They vibrate hundreds of times a second when you speak. Each fold has layers: a thin surface lining (epithelium), a soft, jelly-like layer just beneath it called the superficial lamina propria (or Reinke's space), deeper ligament layers, and the vocalis muscle.

A polyp forms in that soft superficial layer, usually on the free edge of one fold at the middle third, where the folds strike hardest. Small blood vessels there can break with forceful voice use. The leaked blood and fluid organize into a swelling. That answers a common question about which layers are involved: polyps sit in the epithelium and superficial lamina propria and do not usually involve the deeper ligament or muscle, which is why surgery can remove them while sparing the rest of the fold.

Types include:

• Hemorrhagic polyps: red, often after a bleed; common after a shouting episode.
• Gelatinous or fibrous polyps: pale and translucent, or firmer and older.
• Sessile or pedunculated: broad-based, or on a stalk that flops in and out with breathing.

Polyps vs nodules, cysts and other lesions

Vocal cord polyp symptoms

A polyp adds weight to one fold and stops the two edges meeting cleanly. Symptoms include:

• a hoarse, raspy or rough voice that does not recover
• a breathy voice, or running out of air while speaking
• voice fatigue by the end of the day
• loss of the higher notes, pitch breaks or a "double" voice (diplophonia)
• a feeling of a lump or something stuck in the throat, with frequent throat clearing
• needing more effort to speak, sometimes with neck or throat tightness

Polyps do not usually cause pain, trouble swallowing or breathing problems unless they are very large. Those symptoms should prompt a check for something else. Excess saliva is not a typical polyp symptom, although frequent throat clearing and a sense of mucus are common.

Causes and risk factors

• Voice misuse or overuse: shouting, screaming at sports events, singing without good technique, or talking loudly over noise for long periods. Teachers, singers, coaches, salespeople and call-center workers are at higher risk.
• A single vocal injury: one episode of yelling can cause a bleed that becomes a polyp.
• Smoking and vaping: irritate and dry the vocal cords.
• Acid reflux: stomach acid reaching the throat (laryngopharyngeal reflux) inflames the lining.
• Blood thinners and aspirin: make vocal cord bleeding, and hemorrhagic polyps, more likely.
• Coughing and throat clearing: repeated hard closure of the folds. A forceful cough can cause a bleed, but polyps do not usually disappear after coughing stops.
• Allergies and postnasal drip: do not cause polyps directly, but lead to throat clearing, coughing and dryness that add strain. Treating allergies is part of management.
• Irritants: dust, fumes and solvents. Wood dust and fuel exposures (for example jet fuel such as JP-8) are recognized airway irritants, but there is no good evidence that they directly cause polyps.
• Hypothyroidism and dehydration: thicken or dry the folds.

How a vocal cord polyp is diagnosed

The American Academy of Otolaryngology recommends that hoarseness lasting more than 4 weeks, or sooner if there is any concern for something serious, be checked with a look at the larynx.

1. History: voice use, onset, smoking, reflux, allergies and medicines.
2. Laryngoscopy: a thin flexible camera through the nose, or a rigid scope through the mouth, in the clinic. It takes a few minutes with numbing spray.
3. Videostroboscopy: a flashing light shows the folds in apparent slow motion. It shows how a polyp affects the vibrating wave and helps separate polyps from cysts.
4. Voice assessment: a speech-language pathologist records and rates your voice.

Would a doctor biopsy a vocal cord polyp?

Not before treatment, usually. A typical polyp has a clear appearance on stroboscopy. When it is removed surgically, the tissue is always sent to a pathologist to confirm it is benign. A biopsy is done earlier if the lesion looks irregular, white or ulcerated, or the person smokes heavily, to rule out cancer.

Vocal cord polyp treatment

Voice therapy and conservative care

Voice therapy with a speech-language pathologist teaches efficient breathing, resonant voice and safer loudness. It is recommended before and after surgery. Small, new or gelatinous polyps sometimes shrink with therapy alone, but established or fibrous polyps rarely disappear completely.

Supporting measures:

• drink plenty of water and use a humidifier in dry air
• stop smoking and vaping
• treat reflux with diet changes and, if prescribed, acid-reducing medicine
• treat allergies with saline rinses and non-drying options such as a steroid nasal spray
• avoid shouting, whispering and constant throat clearing (sip water or swallow instead)
• review blood-thinning medicines with your doctor if you have had a vocal bleed

Surgery

Phonomicrosurgery (microlaryngoscopy) is done under general anesthesia through the mouth, with no skin cut. Using a microscope and fine instruments or a laser, the surgeon removes the polyp while preserving the healthy lining and the soft layer beneath. Most people go home the same day.

After surgery you are usually told to rest your voice completely for several days (often 3 to 7), then return to speaking gradually with voice therapy. Most people get a clearer voice within weeks, with full results by about 2 to 3 months.

Outlook and prevention

Most people regain a normal or near-normal voice after treatment. Polyps can recur if the causes, such as shouting, smoking or reflux, continue. Professional voice users benefit from ongoing voice coaching. Warm up before heavy voice use, use amplification for teaching or presenting, and rest your voice when it tires.

Frequently asked questions

What are the symptoms of polyps on the vocal cords?

The main symptom is a hoarse, rough or breathy voice that does not improve. Others include voice fatigue, loss of high notes, pitch breaks, a feeling of a lump in the throat and frequent throat clearing. Pain, trouble swallowing or breathing are uncommon and should be checked for other causes.

Can a vocal cord polyp go away on its own?

Small, recent or blood-filled polyps sometimes shrink with voice rest and voice therapy over 6 to 8 weeks. Most established polyps do not resolve fully and are removed surgically. Even when surgery is needed, therapy before and after it improves results and lowers the chance of recurrence.

Can allergies cause vocal cord polyps?

Allergies are not a direct cause, but they contribute. Postnasal drip, coughing, throat clearing and drying antihistamines all add strain to the vocal cords. If you have a polyp and allergies, treating the allergy with saline rinses or a steroid nasal spray is part of the treatment plan.

Are vocal cord polyps cancerous?

No. Vocal cord polyps are benign. However, early laryngeal cancer can also cause hoarseness, especially in smokers, so any hoarseness lasting more than 4 weeks should be examined. Removed polyps are always checked under the microscope to confirm they are benign.

What is the treatment for a vocal cord polyp?

Treatment combines voice therapy, hydration, stopping smoking and treating reflux or allergies. Most persistent polyps are removed with phonomicrosurgery through the mouth, followed by a few days of voice rest and a gradual return to speaking with a speech-language pathologist.

How long does recovery take after vocal cord polyp surgery?

Expect strict voice rest for about 3 to 7 days, then gradually increasing speech over the next few weeks. Most people return to normal conversation within 2 weeks. Singers and heavy voice users usually need 6 to 12 weeks with therapy before full professional use.