Can You Get a Cyst in Your Throat?

Cysts can and do form in the throat, and they come in more varieties than most people realize. Fluid-filled sacs can develop on the vocal cords, at the base of the tongue, along the walls of the pharynx, within the epiglottis, and in tissues left over from fetal development. Some are present from birth, others appear over a lifetime of talking, singing, or dealing with chronic irritation. Most throat cysts are benign and treatable, but the way they announce themselves and the urgency of treatment vary widely depending on exactly where the cyst sits and how large it grows.

Where Throat Cysts Form

The term “throat” covers a lot of anatomy, from the back of the nasal passage down to the larynx, and cysts can appear at nearly every level. Grouping them by location makes the landscape clearer.

In the larynx (the voice box), cysts tend to form on or near the vocal folds. These vocal fold cysts come in two main types: epidermoid cysts lined with skin-like tissue, and mucous retention cysts that develop when a gland duct gets blocked and fluid accumulates beneath the surface of the fold.¹ The epiglottis, the flap-like cartilage that sits at the entrance to the larynx, can also harbor cysts. Epiglottic cysts are usually benign and produce only mild symptoms like hoarseness or difficulty swallowing, though rare cases have caused near-complete airway blockage.²

Slightly higher up, in the space between the base of the tongue and the epiglottis, vallecular cysts form. In one case series of nine patients who had vallecular cysts removed, two-thirds presented with difficulty swallowing as their main complaint, and the cysts appeared as smooth, rounded masses that reproduced symptoms when pressed during an exam.³

In the pharynx itself, Tornwaldt cysts sit in the midline of the nasopharynx, at the very back of the upper throat behind the nose. They arise from remnants of tissue left over from early embryonic development, specifically a communication between notochord remnants and the pharyngeal lining.⁴ Lymphoepithelial cysts can develop in the tonsils and other areas of the throat that contain lymphoid tissue. Their origin is debated, though many researchers believe they form when the tiny pits (crypts) in tonsil tissue become blocked, making them more of a retained pocket of secretion than a true cyst.⁵

Then there are the congenital cysts that form during fetal development but may not become obvious until later in life. Thyroglossal duct cysts develop along the path the thyroid gland followed as it migrated from the tongue base down to the lower neck during embryonic growth. Because this duct usually closes before birth but sometimes doesn’t, remnant tissue can fill with fluid and form a cyst, typically in the midline of the neck near the hyoid bone. Branchial cleft cysts result from leftover tissue from the gill-like structures that form early in embryonic life and normally disappear. About 90% of these originate from the second branchial cleft and show up as a mass along the side of the neck.⁶

What Causes Throat Cysts

The cause depends entirely on the type. Congenital cysts like thyroglossal duct cysts and branchial cleft cysts trace back to altered embryonic development. In the case of branchial anomalies, something goes slightly off between the second and seventh weeks of fetal life, leaving behind tissue that can later develop into cysts, sinuses, or fistulas.⁶ These cysts may sit quietly for years before swelling up due to infection or fluid accumulation, which is why someone might discover a “congenital” cyst in their twenties or thirties.

For vocal fold cysts, the picture is different and still debated. Two main theories exist: one is that trauma from repeated voice use causes a small wound in the vocal fold, and the healing process leads to tissue remodeling that eventually produces a cyst.⁷ The other theory holds that some vocal fold cysts are present from birth due to abnormal embryonic tissue development.⁸ In practice, both pathways likely play a role. People who use their voice heavily, such as singers, teachers, and call-center workers, are commonly seen with vocal fold cysts, which points toward the trauma explanation. But not every heavy voice user develops one, and some cysts appear in people with no particular voice strain.

Chronic acid irritation may also set the stage. A systematic review on the relationship between laryngopharyngeal reflux and benign vocal fold lesions found that reflux creates an environment that may predispose to these lesions by weakening the vocal folds’ defense mechanisms, disrupting cell-to-cell connections, and amplifying the inflammatory reaction to voice use.⁹ The evidence is still preliminary, but it fits with the clinical observation that many patients with vocal fold cysts also have signs of reflux.

Common Symptoms

The symptoms you experience depend on the cyst’s size and location, though throat cysts share a surprisingly limited menu of complaints. Most small cysts produce no symptoms at all and are found incidentally during imaging or exams for something else.

Once a cyst grows large enough to interfere with nearby structures, the typical complaints are:

• Hoarseness: especially with vocal fold and laryngeal cysts, the voice changes because the cyst disrupts the normal vibration of the vocal fold.
• Difficulty swallowing: vallecular cysts, epiglottic cysts, and larger pharyngeal cysts can press against tissues involved in swallowing, producing a sensation of something stuck in the throat or actual trouble getting food down.
• Throat clearing or foreign body sensation: a persistent feeling that something is sitting in your throat that you can’t swallow away.
• Neck pain or stiffness: Tornwaldt cysts in the nasopharynx have been associated with neck pain, which can confuse the diagnosis since most people don’t think of a cyst when their neck hurts.
• Breathing difficulty: less common and more urgent, airway-related symptoms can appear when a cyst grows large enough to physically narrow the air passage.

Vocal fold cysts deserve special mention because their symptoms mimic those of vocal cord polyps and nodules. A person with a vocal fold cyst might be told initially that they have a polyp, or vice versa. The distinction matters because the treatment can differ, and telling them apart without specialized examination is genuinely difficult.

How Throat Cysts Are Diagnosed

Most throat cysts are identified through a combination of endoscopy and imaging. For laryngeal cysts, the first step is usually flexible laryngoscopy, where a thin camera is threaded through the nose to look directly at the larynx. This shows the cyst’s size, shape, and location in real time.

To distinguish a vocal fold cyst from a polyp, videostroboscopy provides critical detail. This technique uses a strobe light synchronized with the vocal folds’ vibration to create a slow-motion view of how the folds move. A retrospective study of 32 patients found that the mucosal wave, the ripple-like motion of the vocal fold surface, was absent or reduced in all true vocal fold cysts, while it was present or even increased in 80% of polyps.¹⁰ That difference in mucosal wave behavior is one of the most reliable preoperative clues.

For neck cysts like thyroglossal duct or branchial cleft cysts, imaging typically involves CT or ultrasound. CT scanning provides information about the cyst’s extent and internal composition, and MRI may be added for preoperative planning in complex cases.¹¹ An important consideration is that cystic-looking masses in the neck aren’t always benign cysts. Lymph nodes with cystic changes can be associated with papillary thyroid carcinoma, tuberculosis, and HPV-positive oropharyngeal squamous cell carcinoma, and telling these apart from harmless cysts on imaging alone can be difficult without further workup.¹²

Treatment Without Surgery

Not every throat cyst requires an operation. For vocal fold cysts that cause hoarseness and voice strain, voice therapy is sometimes tried as a first step. This involves working with a speech-language pathologist to change voice habits and reduce the strain on the vocal folds. In a study of 57 patients with vocal fold polyps and cysts, roughly half achieved symptom resolution with voice therapy alone, avoiding surgery entirely.¹³ A separate study confirmed that voice therapy provided as initial treatment for benign vocal fold lesions can improve perceived voice quality enough to make surgery unnecessary in some patients.¹⁴

This doesn’t mean voice therapy works for everyone or for every type of cyst. Epidermoid cysts with a thick capsule tend to be less responsive than mucous retention cysts. And for cysts in locations like the epiglottis or vallecula that are causing swallowing problems or airway narrowing, voice therapy obviously doesn’t address the issue. Still, for vocal fold cysts specifically, trying a period of voice therapy before committing to surgery is a reasonable approach, especially if the symptoms are primarily about voice quality rather than breathing.

Surgical Approaches

When surgery is needed, the technique depends on the type and location of the cyst. For vocal fold cysts, the standard approach is microlaryngeal surgery: the surgeon works through a laryngoscope (a tube placed through the mouth into the larynx) using either traditional micro-instruments or a laser to remove or open the cyst. Comparing laser and traditional (“cold knife”) techniques for vocal fold cyst removal, a study found no meaningful difference between the two methods in terms of postoperative voice quality scores.¹⁵ Both approaches restored normal mucosal wave, symmetric vocal fold motion, and complete glottic closure. A more recent technique involving CO₂ laser vaporization of the cyst’s inner capsule has also shown significant improvement in voice quality measures after surgery.¹⁶

For larger laryngeal cysts and related lesions like laryngoceles (air-filled sacs in the larynx), endoscopic laser marsupialization has been used successfully. This technique opens the cyst from the inside rather than removing it entirely, and long-term follow-up has shown sustained voice improvement.¹⁷

Thyroglossal duct cysts require a completely different surgical strategy because the remnant duct often extends from the cyst up through the hyoid bone toward the tongue base. The Sistrunk procedure, first described in 1920, remains the standard treatment. It involves removing the cyst along with the central portion of the hyoid bone and a core of tissue extending to the tongue base, producing a recurrence rate under 3% when performed correctly.¹⁸ The hyoid bone removal is essential because leaving it behind creates a pathway for the cyst to come back. Refinements to the technique, including careful dissection of the space behind the hyoid, have further reduced recurrence caused by incomplete removal of tissue in that area.¹⁹

When a Throat Cyst Becomes an Emergency

Most throat cysts grow slowly and stay manageable, but there are scenarios where they become genuinely dangerous. Airway obstruction is the most serious risk. An infected thyroglossal duct cyst can swell rapidly enough to threaten the airway, turning a previously harmless lump into a medical emergency.²⁰ Epiglottic cysts, though usually benign, have been documented to cause near-complete airway obstruction in rare instances.²

Malignancy is another concern, though it’s uncommon. Thyroglossal duct cyst carcinoma occurs in about 1% of thyroglossal duct cysts.²¹ The challenge is that a cyst harboring cancer often cannot be distinguished from a benign one without a biopsy, so any thyroglossal duct cyst that behaves unexpectedly, growing rapidly, becoming hard, or not responding to treatment, warrants further investigation. This is especially true in older adults, who are less likely to present with a new thyroglossal duct cyst for the first time and more likely to have a different underlying diagnosis entirely.

Throat Cysts in Babies and Newborns

Throat cysts take on a different level of urgency in infants. A baby’s airway is small, and even a modestly sized cyst can cause significant obstruction. Congenital laryngeal cysts are rare, but when they do occur, they can present with stridor (a high-pitched breathing sound), respiratory distress, feeding difficulties, and cyanosis.²² A small cyst may remain asymptomatic, but if large, it can block the laryngeal inlet and become life-threatening. One review noted that delayed diagnosis of congenital laryngeal cysts can lead to mortality in up to 40% of cases.²³

Vallecular cysts in newborns can also cause severe inspiratory stridor and respiratory distress from upper airway obstruction.²⁴ The classic presentation is a newborn with noisy breathing that worsens during crying or feeding. Because many conditions cause stridor in infants (from the common laryngomalacia to the rarer subglottic stenosis), a laryngeal cyst isn’t always the first diagnosis considered, and this delay in recognition is precisely what makes these cysts dangerous in this age group. If a newborn has stridor that doesn’t resolve, prompt endoscopic evaluation is important.

Why Diagnosis Is Trickier Than It Sounds

A cystic mass in the throat or neck region isn’t always a simple cyst. Several conditions can mimic one. Cystic lymph nodes, for instance, can be a sign of papillary thyroid carcinoma, tuberculosis, or HPV-positive oropharyngeal squamous cell carcinoma, and without a known primary tumor or conclusive medical history, differentiating among these on CT imaging alone is a real challenge.¹² This is one reason doctors don’t always take a “wait and see” approach with cystic neck masses in adults, especially in older patients or those with risk factors for head and neck cancers.

At the vocal fold level, the diagnostic overlap between cysts, polyps, and nodules frustrates both patients and clinicians. All three can cause hoarseness and a breathy voice quality. All three can look somewhat similar on standard laryngoscopy. The stroboscopic mucosal wave test helps, but it isn’t available in every clinic, and the final answer sometimes comes only when the surgeon is in the operating room and can see the lesion up close. This means that if you’ve been told you have a “vocal cord nodule” that isn’t responding to therapy, it’s worth asking whether a cyst has been ruled out, since the treatment path for a true cyst often leads to surgery rather than continued conservative management.

Thyroglossal duct cysts can also be confused with dermoid cysts, ectopic thyroid tissue, and, in adults, thyroid nodules. The classic test is to have the patient swallow or stick out their tongue: a thyroglossal duct cyst moves upward with tongue protrusion because of its embryonic connection to the tongue base, while most other midline neck masses stay put. It’s a surprisingly low-tech maneuver that remains useful even in the age of advanced imaging.

Acid Reflux and Its Possible Role

The connection between acid reflux and vocal fold cysts is worth paying attention to if you’ve been diagnosed with one. Laryngopharyngeal reflux, where stomach acid reaches the throat, is thought to weaken the vocal folds’ protective barriers, disrupt the connections between cells, and promote inflammation that makes the folds more vulnerable to damage from normal voice use.⁹ This doesn’t mean reflux directly causes cysts, but it may tip the balance in someone whose vocal folds are already under stress from heavy voice use or previous injury.

If you have a vocal fold cyst and also experience chronic throat clearing, a sour taste in the morning, or a frequent sensation of mucus in the throat, it’s worth discussing reflux management with your doctor. Treating reflux won’t dissolve an existing cyst, but managing it could reduce the inflammation that contributes to cyst development and might protect the vocal fold after surgical removal. Some clinicians routinely address reflux as part of the treatment plan for benign vocal fold lesions, even if the patient’s main complaint is voice-related rather than digestive.