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Tarlov Cyst Disease can be difficult to recognize and diagnose. Understanding the condition, symptoms, and evaluation process can help patients advocate for their care.

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What Is Tarlov Cyst Disease?

Tarlov Cyst Disease, also known as perineural cysts, is an under-recognized condition where fluid-filled sacs develop along the nerve roots of the spine. These cysts contain cerebrospinal fluid and are most commonly found in the sacral region (the lower part of the spine near the tailbone), but they can also occur at other levels of the spine.

However, not all Tarlov Cysts cause symptoms. 

Many cysts are discovered during imaging for another reason and may never impact a person’s health. When a cyst affects nearby nerves, it can contribute to symptoms such as pain, numbness, tingling, weakness, or changes in bladder, bowel, or sexual function.

Symptoms vary widely and overlap with other conditions, which often makes recognizing and evaluating symptomatic Tarlov Cysts challenging. Because the condition is under-recognized, many people experience delays in receiving an accurate diagnosis. 

Medical illustration of the spine highlighting an area associated with Tarlov cysts.


Learning more about this condition can help patients have informed conversations with healthcare providers and advocate for the care and support they need.

Why Is Tarlov Cyst Misunderstood?

Tarlov Cyst Disease can be challenging to diagnose because symptoms vary from person to person and may overlap with other conditions. For many years, limited awareness and evolving medical understanding meant that some symptomatic Tarlov Cysts were not recognized as a possible source of symptoms.

1938

First Described

In 1938, neurosurgeon Dr. Isadore Tarlov first described fluid-filled sacs developing along spinal nerve roots, now known as Tarlov Cysts. His early observations suggested that the cysts were incidental findings that did not cause symptoms, an understanding that influenced medical education, radiologic reporting, and clinical practice for decades. 

1953

Clinical Significance Recognized

However, in 1953, Dr. Tarlov published additional research documenting symptomatic cases. This study demonstrated that Tarlov Cysts can cause neurological symptoms when they affect nearby nerves. 

Awareness Continued to Evolve

As medical understanding evolved, these findings were not always consistently reflected in clinical education and practice. As a result, many patients experienced long diagnostic journeys, uncertainty about the cause of their symptoms, or referrals for other conditions before symptomatic Tarlov Cysts were considered. 

Today

Growing Recognition & Hope

While every person’s experience is different, growing awareness is helping more patients receive informed evaluation and appropriate care. Today, researchers, healthcare professionals, and patient organizations like the Tarlov Cyst Society are working together to improve awareness, share evidence-based information, and increase informed conversations about Tarlov Cyst Disease.

Common Symptoms

Symptoms can develop gradually and may vary from person to person. Understanding common patterns can help you have informed conversations with your healthcare provider.

Pain:

Persistent lower back, pelvic, buttock, or leg pain, often worse when sitting or standing.

Numbness & Tingling:

Changes in sensation, weakness, or nerve pain affecting the legs, feet, or pelvic region.

Bladder & Bowel Changes:

Urinary urgency, retention, constipation, incontinence, or other changes in bladder or bowel function.

Sitting Discomfort:

Pain or pressure when sitting, sometimes described as feeling like you’re sitting on a rock or lump.

Weakness:

Muscle weakness, leg fatigue, difficulty walking, or foot drop caused by nerve compression.

Sexual & Pelvic Symptoms:

Pelvic pain, pain during intercourse, reduced sensation, or other pelvic floor symptoms.

While most symptomatic cysts occur in the sacral region, they can also develop in the cervical or thoracic spine. Depending on location, symptoms may include neck pain, headaches, shoulder or arm pain, chest discomfort, dizziness, or changes in sensation in the upper body.

Please seek urgent medical attention if you experience sudden loss of bladder or bowel control, new numbness in the groin area, or difficulty walking. These symptoms require prompt medical assessment. 


Separating Myths from Facts

As awareness of Tarlov Cyst Disease continues to grow, separating common misconceptions from current evidence can help patients better understand their condition and advocate for informed care.

Tarlov cysts are actually more common than many people think. Studies show that
up to 4% of people have them — and about 1 in 100 may have symptoms caused by
them. Research now shows they can cause real, sometimes serious nerve problems when they press on spinal nerves.

Sometimes, it is. When cysts press on nerves, they can cause pain, numbness,
tingling, or weakness in the legs, pelvis, or feet. The key is matching where the cyst is on
your spine to where your symptoms are — this helps doctors tell if your cyst is actually
the source of your pain.

There are treatment options. In some patients, CT-guided fluid drainage (called
“aspiration”) followed by sealing the cyst with a special fibrin glue has helped reduce
symptoms. Other people may need surgery to repair the cyst or relieve pressure on the
nerve. The right option depends on your symptoms, overall health, and the cyst’s size
and location.

Most people with cysts are women, and researchers believe that some may have
underlying tissue or nerve conditions — like Ehlers-Danlos syndrome — that make
cysts more likely to form or cause symptoms.

Imaging is important, but symptoms matter just as much. Doctors should connect
what’s seen on the MRI to what you feel in your body. Sometimes, nerve blocks or fluid
drainage can help confirm whether a cyst is truly the pain source.

Size isn’t the only thing that matters. Even small cysts can cause pain or nerve
symptoms if they’re pressing on a sensitive nerve root or are located in a tight area of
the spine — especially in the sacrum (lower back). What’s important is where the
cyst is and what it’s touching, not just how big it is.

Diagnosis & Evaluation

A complete evaluation looks at the whole picture, including a person’s symptoms, medical history, physical examination, and imaging findings.

MRI and other imaging tests can help identify Tarlov Cysts and their location, but imaging alone does not always determine whether a cyst is causing symptoms. Healthcare providers consider how the cyst’s location relates to a person’s symptoms while also evaluating other possible causes. 

Because awareness of Tarlov Cyst Disease is still developing, patients may benefit from keeping records of their symptoms, asking questions, and sharing trusted educational resources with their healthcare team.

An informed, collaborative approach can help patients and providers work together toward a clearer understanding of their condition.

More about diagnostic testing
Doctor discussing MRI scan results with patient in a medical facility.
Female doctor using a tablet for medical diagnosis in a modern office setting.


Finding the Right Treatment

Treatment for symptomatic Tarlov Cysts depends on a person’s symptoms, the location and characteristics of the cyst, and how the condition affects their daily life. There is no single treatment approach that works for everyone, and care decisions should be made with a healthcare provider familiar with the individual’s needs.

For some people, treatment may focus on managing symptoms through approaches such as pain management, physical or pelvic floor therapy, lifestyle adjustments, or supportive therapies. In other cases, procedures such as nerve blocks, cyst aspiration, fibrin sealant injections, or surgery may be considered.

Because Tarlov Cyst Disease is complex, patients are encouraged to work with a healthcare team that understands the condition and can help weigh potential benefits and risks of different options.

More About Treatment Options

Frequently Asked Questions

To determine whether a cyst is symptomatic, healthcare providers must correlate clinical symptoms with imaging findings. This means looking at both where the cyst is and what the patient is experiencing.

Here’s how symptomatic cysts are typically identified:

1. Pain patterns that match cyst location: Persistent or positional pain at or below the level of the cyst

  • Persistent or positional pain at or below the level of the cyst
  • Pain that worsens with sitting, standing, walking, or bearing down
  • Pelvic, perineal, or radicular (nerve) pain in the affected region

2. Neurological symptoms:

  • Numbness, weakness, or altered sensation in the nerve root distribution
  • Bladder, bowel, or sexual dysfunction (especially in sacral cysts)

3. Imaging that shows cyst characteristics:

  • Cyst size, nerve root displacement, or bony erosion
  • Cysts located at levels that match the patient’s symptom profile

4. Confirmatory testing (if needed):

  • Selective nerve blocks or cyst aspiration may be used to confirm the cyst is causing the symptoms.

A cyst can be large and still remain asymptomatic, or small but press on a critical nerve root, causing significant dysfunction. For a complete overview, download and print our evidence-based Diagnosing & Testing for Symptomatic Tarlov Cysts guide to share with your medical care team.

Download Our Diagnostic Poster
  • Informed patients get better care.
    Understanding your condition equips you to ask the right questions, recognize misinformation, and actively participate in decisions about your health.
  • Most healthcare providers are unfamiliar with TCD.
    Not because they don’t care — but because today’s medical system is navigating more than 7,000 identified rare diseases, each competing for attention in a world where training focuses on the conditions doctors see every day. It’s simply not possible for any clinician to have deep knowledge of every complex or uncommon condition.
  • Tarlov Cyst Disease often slips through the cracks.
    With limited clinical guidelines and long-standing misconceptions about cysts being “incidental findings,” many clinicians have never been taught what current research now shows. This doesn’t remove the frustration patients feel, but it helps frame the gap: doctors are human, and their expertise naturally centres on more common conditions.

The Diagnostic Poster provides a clear, evidence-based overview of how symptomatic Tarlov Cysts can be evaluated through:

  • Accurate diagnosis through symptom correlation, advanced imaging, and confirmatory testing.
  • Awareness of common pain patterns and neurological dysfunction linked to symptomatic cysts.
  • A multidisciplinary approach to care—encouraging healthcare providers to move beyond outdated misconceptions​

Patients can use this poster as a resource during medical appointments to support informed conversations with their healthcare team and help ensure their concerns are considered alongside current research and clinical information.

The treatment of a symptomatic Tarlov cyst typically involves a multidisciplinary approach, including specialists such as neurosurgeons, neurologists, pain management specialists, physical therapists, radiologists, and pain medicine physicians. Consulting with a healthcare team that includes these specialists is essential for the best outcome. The choice of the specific medical professional will depend on the individual’s symptoms, the severity of the cyst, and the recommended treatment plan.

Managing pain from symptomatic Tarlov cysts involves several strategies: medications, physical therapy, heat or cold therapy, lifestyle modifications, pain management techniques, supportive devices, stress reduction, staying active, diet and nutrition, and alternative therapies. Work closely with your healthcare team to develop a personalized pain management plan that addresses your specific symptoms and needs.

The risks associated with Tarlov Cyst treatments vary based on the chosen approach. Conservative options like pain management and physical therapy have minimal risks. Surgical interventions, such as cyst drainage, fenestration, or removal, carry potential risks like infection, nerve damage, spinal fluid leakage, and cyst recurrence. Patients should discuss these risks thoroughly with their healthcare providers before deciding on a treatment plan.

The cost of Tarlov Cyst surgery can vary widely depending on factors such as the location where the procedure is performed, the type and complexity of surgery, healthcare coverage, and post-operative care requirements.

Costs differ significantly between healthcare systems and individual circumstances. Patients should discuss expected costs, insurance coverage, and available options with their healthcare provider and surgical team.

Concerns about Adhesive Arachnoiditis (AA) are understandable when considering any spinal procedure. Current information indicates that Tarlov Cyst surgery does not commonly cause AA, and patients should discuss individual risks with a healthcare provider experienced in treating Tarlov Cysts.

Decisions about treatment should be based on a careful evaluation of symptoms, imaging findings, potential benefits, and risks.

While Tarlov Cyst Disease is considered uncommon and remains under-recognized, research suggests Tarlov Cysts may be more common than previously understood. The challenge is identifying when a cyst is symptomatic and contributing to a person’s symptoms.

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You’re Not Alone

Whether you’re newly diagnosed or have been living with cysts and looking for trusted information, our patient resources and community connections can help you better understand Tarlov Cyst Disease and navigate your journey.

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