Painful Neuroma After Prior Surgery: Causes, Treatment, and When to See a Specialist
A painful neuroma after surgery is a focal, treatable cause of chronic post-surgical pain that is often missed. Dr. Brian Kelley, an Austin nerve surgeon, walks through where neuromas form after specific operations — mastectomy and cancer resection, hernia repair, knee and joint surgery, and facial surgery — and what modern treatment looks like, including traditional excision and modern techniques like TMR and RPNI. PRO data and specialist evaluation criteria included.
Written by Brian P. Kelley, MD — Dual Board-Certified Plastic & Hand Surgeon
Affiliate Faculty, Dell Medical School at The University of Texas at Austin
Seton Ascension Institute for Reconstructive Plastic and Hand Surgery — Austin, Texas
Medically reviewed: June 1, 2026 · Last updated: June 1, 2026
Educational content. Not a substitute for individualized medical evaluation.
Introduction
A common pattern I see in clinic: a patient had surgery months or years ago, recovered from the operation itself, and then developed a localized burning, electric, or sharp pain at or near the surgical site that has not resolved. Many of these patients have been told the pain is scar pain, fibromyalgia, central sensitization, or that they will simply have to live with it.
Sometimes those framings are correct. But in a meaningful subset of patients, the pain is caused by a specific, anatomic problem: a painful neuroma formed at the site of a nerve that was cut, stretched, or compressed during the original surgery.
This matters because neuromas are treatable. The treatment options have improved substantially over the past decade, and modern techniques produce meaningful pain relief in carefully selected patients.
I practice as a dual board-certified plastic and hand surgeon in Austin, Texas, with fellowship training in hand and microsurgery. I take referrals from across Central Texas for peripheral nerve problems, including painful post-surgical neuromas after a wide range of original operations. My published work includes a first-author systematic review on postoperative pain in hand surgery,1 and co-authored research on regenerative peripheral nerve interface (RPNI) for the management of symptomatic hand and digital neuromas.2
This post explains what neuromas are, why they form after specific kinds of surgery, what modern treatment looks like, and when to seek specialist evaluation.
What Is a Neuroma?
When a peripheral nerve is cut or significantly injured, the part of the nerve that has lost connection to its target begins a biological process called Wallerian degeneration. The proximal stump — the end still connected to the spinal cord — then attempts to regenerate axons in search of a target.
When regenerating axons cannot find their original pathway, they form a disorganized tangle of nerve fibers, scar tissue, and Schwann cells at the cut end. This tangle is a neuroma.
Most neuromas are anatomically silent and cause no symptoms. Some, however, become hyperexcitable: spontaneous and abnormally amplified electrical signals from the neuroma travel back to the spinal cord and brain, producing the burning, electric, sharp, or shooting pain patients describe.
The pain is typically focal, often reproducible with pressure or tapping over a specific point (a positive Tinel sign), and often relieved temporarily by a local anesthetic injection at that point. This is part of how the diagnosis is confirmed.
Why Some Operations Carry Higher Neuroma Risk
Any operation that cuts or stretches a peripheral nerve can produce a neuroma. Several specific surgical contexts come up frequently in my practice, each with its own anatomic considerations.
Cancer Resections, Including Breast Reconstruction
Cancer surgery often requires removing or disrupting nerves to achieve adequate margins. The mastectomy is the most-studied example. Post-mastectomy pain syndrome (PMPS) — chronic pain lasting more than three months after breast cancer surgery — affects an estimated 25 to 60% of patients in pooled series.3
The most commonly implicated nerves are the intercostobrachial nerve, the lateral cutaneous branches of the intercostal nerves, and the medial and lateral pectoral nerves. Some of this chronic pain is intercostobrachial neuralgia from nerve entrapment. A meaningful subset is true neuroma pain at the cut end of these sensory nerves.
A separate but related concern in breast reconstruction is sensory loss in the reconstructed breast. Our group at Dell Medical School published a systematic review on normal breast sensibility in 2024, examining what objective sensibility measurements look like in normal breasts so that the field can better interpret the results of reinnervation procedures.4 The honest framing from this work: the field still lacks standardized normative measurements, and patient expectations about "restoring sensation" should be calibrated accordingly.
Loss of sensation and painful neuroma are distinct problems. A patient can have one without the other. Both can occur together. Treatment differs by which problem dominates, which is part of why evaluation by a peripheral nerve specialist is useful.
For painful post-mastectomy neuromas specifically, neuroma excision with implantation has been studied in pooled series with more than 80% of patients reporting partial or complete pain relief at average follow-up of 24 months.5 RPNI has been studied prospectively as a more modern alternative.6
Other cancer resections that frequently produce neuromas include radical neck dissection, sarcoma resection, amputation for limb sarcoma, and major abdominal or pelvic oncologic operations. The same biological mechanisms and treatment principles apply.
Facial Nerve Injuries: Sensory and Motor
Facial surgery affects nerves with both sensory and motor functions, and the consequences of injury can include sensory neuromas, motor weakness, or both.
After Mohs micrographic surgery for skin cancer, particularly in cosmetically sensitive areas of the face, cut sensory nerve endings can form painful neuromas. The pain is typically focal, reproducible with light pressure over a specific spot, and located within the operative field. Patients sometimes describe it as a "trigger point" they have to avoid touching.
Major head and neck cancer resections — for tongue cancer, oropharyngeal cancer, and oral cavity tumors — frequently involve sacrifice of branches of cranial nerves and major peripheral sensory nerves. The same mechanism applies, often complicated by radiation effects in the same field.
Parotid surgery and facial fracture repair carry risk to the facial nerve itself. Iatrogenic facial nerve injury is uncommon in experienced hands, but when it occurs, the consequences include motor weakness and, in some cases, painful neuroma formation at the site of injury. Reconstruction of the facial nerve with grafting or nerve transfer is a specialized operation, and modern neuroma management techniques have a role when the injury has resulted in a painful proximal stump rather than a reconstructable nerve.
Hernia Surgery
Inguinal hernia repair is one of the most common operations performed worldwide, and chronic post-herniorrhaphy pain is a well-recognized complication. The reported incidence varies widely depending on definition — from less than 1% to over 40% in different series — with persistent neuropathic groin pain affecting roughly 10% of patients in pooled estimates.7
Three nerves are at risk during inguinal hernia repair: the ilioinguinal, the iliohypogastric, and the genitofemoral. These nerves can be cut, stretched, entrapped in mesh, or trapped in scar tissue. Any of these injuries can produce a neuroma. Operative series of refractory groin pain after hernia repair have documented entrapment in mesh, scar, or obvious neuroma in the majority of explored cases.7
When a neuroma is identified, treatment options include neuroma excision with traditional implantation or modern techniques (RPNI or TMR), as well as the more established triple-neurectomy approach for severe refractory cases. Diagnostic nerve blocks are essential before proceeding to surgery, both to confirm the affected nerve and to predict the likely benefit of operative intervention.
Knee and Joint Surgery
The infrapatellar branch of the saphenous nerve is the single most-frequently-injured nerve in knee surgery. Routine total knee arthroplasty (TKA) using a standard midline incision transects this nerve or its terminal branches in a high proportion of cases.
Most patients with a transected infrapatellar saphenous branch experience only an area of numbness over the medial knee and no significant pain. A subset, however, develop painful neuroma at the cut end.
The numbers are worth knowing. About 20% of TKA patients report persistent dissatisfaction, often due to residual pain, and infrapatellar saphenous neuroma is an underrecognized cause.8
Symptomatic injury to this nerve has been reported in 55 to 84% of TKA patients in some series when longitudinal incisions are used, in 37 to 86% of patients after anterior cruciate ligament reconstruction, and in up to 28% of patients after surgical meniscectomy — though the rate of painful neuroma specifically is much lower than these total injury rates.9
For patients with persistent localized medial knee pain after TKA, ACL reconstruction, or arthroscopy who have a positive Tinel sign over a specific spot and pain relief with a diagnostic ultrasound-guided nerve block at that site, surgical neurectomy with neuroma management has been shown to provide meaningful pain reduction in selected case series.10
Diagnosis of Post-Surgical Neuroma
The diagnosis of a symptomatic neuroma is fundamentally clinical, supplemented by selective use of imaging and diagnostic nerve blocks.
A typical history includes pain that began at or near a prior surgical site, often weeks to months after the operation, with a burning, electric, sharp, or shooting quality. The pain is typically focal rather than diffuse and is often worse with pressure, certain movements, or specific positions.
A focused examination identifies the trigger point. Tapping or pressing over the suspected neuroma reproduces the pain in the relevant nerve distribution (a positive Tinel sign). Sometimes the neuroma itself is palpable as a small firm thickening under the skin.
Diagnostic nerve blocks are extremely useful. A small volume of local anesthetic, often injected under ultrasound guidance directly into or adjacent to the suspected neuroma, should provide temporary but substantial relief of the patient's typical pain. A positive block strongly supports the diagnosis and predicts that surgical management of that nerve will likely help.
High-resolution ultrasound can visualize larger neuromas directly. MRI is occasionally useful for proximal nerves or atypical presentations. Electrodiagnostic testing has a more limited role for neuroma than for compression syndromes, but it can be useful to rule out alternative diagnoses.
Treatment Options
Treatment ranges from supportive non-surgical care through several distinct surgical approaches. The right choice depends on the location, severity, response to conservative measures, and the patient's overall situation.
Non-Surgical Management
Initial management is typically non-surgical and includes neuropathic pain medications (gabapentinoids, tricyclic antidepressants, SNRIs), topical agents (capsaicin, lidocaine patches), desensitization therapy with a hand or physical therapist, and selective nerve blocks. Many neuromas improve over time without surgery, and many patients are managed adequately with this approach indefinitely.
When non-surgical measures provide inadequate relief — typically defined as pain that significantly limits function or quality of life despite an adequate trial of medications and therapy — surgical options enter the conversation.
Traditional Surgical Approaches
Traditional neuroma surgery involves excising the painful neuroma and implanting the cut nerve end in a deeper location (muscle, bone, or a deeper soft tissue plane) in an effort to give it a less mechanically irritating environment. This approach has been performed for decades and provides meaningful relief in many patients.
The honest framing on traditional excision is that recurrence rates have historically been 20 to 30%, with some series reporting higher figures.5 The cut nerve end remains a cut nerve end — moving it to a deeper site reduces but does not eliminate the risk of recurrent neuroma formation.
Modern Techniques: TMR and RPNI
Targeted muscle reinnervation (TMR) and regenerative peripheral nerve interface (RPNI) are two relatively recent surgical approaches that aim to give the cut nerve a physiologic target rather than simply moving it.
TMR involves coapting the cut sensory or mixed nerve to a nearby motor nerve branch that supplies a small expendable muscle. The regenerating axons from the cut nerve grow into the motor nerve and reinnervate that muscle, redirecting the disorganized regeneration into a productive pathway.
RPNI involves wrapping the cut nerve end in a small free muscle graft, which provides regenerating axons with new neuromuscular targets within the graft. The technique was developed at the University of Michigan, where I trained, and I have published research on its application to symptomatic hand and digital neuromas.2
Pooled data on TMR and RPNI for symptomatic neuromas show pain relief in more than 80% of patients in published series, with low complication rates. A systematic review of these techniques found them associated with significantly improved outcomes compared to standard neuroma excision alone.5 Patient-reported outcomes data, when collected with validated instruments, has generally favored the modern techniques over traditional excision-and-burial approaches.
The evidence base is still maturing. High-quality randomized trials are limited, and the strongest published evidence comes from large case series and single-institution comparative studies. The honest framing is that modern techniques represent a meaningful advance over historical practice, but they are not magic — patient selection, surgical technique, and the underlying pathology all matter.
When to See a Specialist
A consultation with a peripheral nerve specialist is reasonable in several specific situations:
- Persistent focal pain at or near a prior surgical site that has not improved on the timeline your surgeon described
- A localized "trigger point" where pressure or tapping reproduces sharp, burning, or electric pain
- Pain that has not responded adequately to neuropathic pain medications, topical agents, and physical or occupational therapy
- A positive diagnostic nerve block (temporary substantial relief from local anesthetic injection at the painful site)
- Significant impact on daily function, work, sleep, or quality of life
The output of a good consultation is typically one of three things: a clearer diagnosis with a plan that may or may not include surgery; a confirmation that non-surgical management is the right path; or a recognition that a different problem (not a neuroma) is responsible for the symptoms and a redirection to the appropriate specialist.
Most patients with chronic post-surgical pain do not have a neuroma amenable to surgery. But for the subset who do, recognizing it can change their trajectory substantially.
Recovery and Realistic Expectations
Recovery from neuroma surgery is generally faster and less involved than the original operation that produced the neuroma. Most procedures are outpatient. The incision heals over the usual couple of weeks, and pain relief — when it occurs — typically begins within weeks and continues to improve over months as the regenerating nerve interacts with its new target tissue.
Realistic expectations matter. Some patients experience near-complete resolution of pain. Others experience meaningful but partial improvement. A small subset experience little or no benefit. The strongest predictors of a favorable outcome are appropriate patient selection (focal neuroma confirmed by examination and diagnostic block), an experienced surgical team, and a comprehensive postoperative pain plan that does not rely on the operation alone.
For patients whose pain is multifactorial — with components from neuroma, central sensitization, and other contributing factors — surgery addresses the neuroma component but does not eliminate the other contributors. Honest preoperative counseling about this matters and is part of the consultation.
Risks
Neuroma surgery shares the general risks of any procedure: bleeding, infection, scarring, anesthetic complications. Specific risks include recurrent neuroma formation, incomplete pain relief, sensory loss in the nerve's distribution (often present already from the original surgery), and rarely worsening of pain.
The risks are generally low in experienced hands, but they are not zero, and the realistic likelihood of meaningful benefit should be weighed against them before proceeding.
A Note on Local Care in Central Texas
Patients in Austin and across Central Texas with persistent post-surgical pain that may be due to a neuroma deserve evaluation by a hand and peripheral nerve specialist with experience in modern neuroma management techniques. The decision-making benefits from familiarity with the full range of options, including traditional excision, TMR, RPNI, and nerve reconstruction when needed.
I see patients from across Central Texas for evaluation of post-surgical pain and possible neuroma, including patients with pain after mastectomy, hernia repair, knee surgery, facial surgery, and other operations. Referrals from primary care, pain medicine, oncology, and the original treating surgeons are welcome.
Related Topics
- Peripheral nerve surgery, RPNI, and TMR
- Breast Reconstruction
- Face and Body Reconstruction
- TMR vs. RPNI: what is the difference?
- Persistent symptoms after carpal tunnel or cubital tunnel release
- When persistent pain or function loss after nerve surgery means a second opinion is reasonable
- When your EMG is normal but the pain is real
- Finding a peripheral nerve surgeon in Texas
- Breast sensation after mastectomy
Frequently Asked Questions
A symptomatic neuroma typically produces a focal, sharp, burning, electric, or shooting pain at or near a prior surgical site. The pain is often reproducible with pressure or tapping over a specific spot — a positive Tinel sign. Patients often describe it as a "trigger point" they have to avoid touching. The pain may radiate along the affected nerve's distribution. Some neuromas are also associated with numbness or hypersensitivity in the same area.
Neuromas can become symptomatic anywhere from a few weeks to several years after the original operation. The biological process of axonal regeneration begins immediately after a nerve is cut, but the neuroma itself takes weeks to months to form and may take additional time before becoming painful. Late presentation does not rule out a neuroma — patients with pain that began a year or more after surgery can still have one.
Most insurance plans cover neuroma surgery when it is medically necessary, including traditional neuroma excision, TMR, and RPNI. The standard coverage requirements typically include documented failed conservative management (medications, therapy, blocks), a positive diagnostic block confirming the affected nerve, and clear medical necessity. As always, preauthorization and documentation matter, and patients with denials should consider formal appeal.
Both techniques aim to give the cut nerve a physiologic target rather than simply moving it. TMR coapts the cut nerve to a small motor nerve branch that supplies an expendable muscle, redirecting the regenerating axons into productive reinnervation.
RPNI wraps the cut nerve end in a small free muscle graft, where regenerating axons form new neuromuscular junctions within the graft. The choice between them depends on the location, nerve type, and surgical context. Both have favorable published outcomes for symptomatic neuromas.
No. Post-mastectomy pain syndrome has multiple contributing causes including intercostobrachial neuralgia, scar pain, shoulder dysfunction, central sensitization, and lymphedema-related pain. Neuroma is one component among several. A careful evaluation distinguishes which factors are contributing and which are amenable to surgical management. Not all post-mastectomy pain is treatable with neuroma surgery, but a meaningful subset is.
Yes, in selected patients. Persistent medial knee pain after total knee arthroplasty (TKA) is not always due to the prosthesis itself. When the pain is localized, reproducible with pressure over a specific spot along the medial knee, and relieved by a diagnostic ultrasound-guided nerve block to the infrapatellar branch of the saphenous nerve, surgical neurectomy and neuroma management has been associated with meaningful pain relief in case series. Not every dissatisfied TKA patient has a neuroma, but for those who do, the operation is worth considering.
Chronic post-herniorrhaphy pain affects roughly 10% of inguinal hernia repair patients in pooled estimates, with reports as high as 40% in some series depending on definition. Many of these patients have nerve injury involving the ilioinguinal, iliohypogastric, or genitofemoral nerves. Evaluation by a peripheral nerve specialist is reasonable, particularly if you have a positive Tinel sign over the surgical site, neuropathic-quality pain in a specific dermatomal distribution, or pain relief from a diagnostic block. Surgical options exist when conservative management has been inadequate.
As a fellowship-trained hand and peripheral nerve surgeon in Austin, I see patients from across Central Texas for evaluation of painful post-surgical neuromas. Referrals from primary care, pain medicine, oncology, and the treating surgical specialties are welcome, and direct patient inquiries are also accepted depending on individual insurance plans.
1. Kelley BP, Shauver MJ, Chung KC. Management of Acute Postoperative Pain in Hand Surgery: A Systematic Review. Journal of Hand Surgery (American). 2015;40(8):1610–1619. PMID: 26213198.
2. Hooper RC, Cederna PS, Brown DL, Haase SC, Waljee JF, Egeland BM, Kelley BP, Kung TA. Regenerative Peripheral Nerve Interfaces for the Management of Symptomatic Hand and Digital Neuromas. Plastic and Reconstructive Surgery — Global Open. 2020;8(6):e2792. PMID: 32766027.
3. Tait RC, Zoberi K, Ferguson M, Levenhagen K, Luebbert RA, Rowland K, Salsich GB, Herndon C. Persistent Post-Mastectomy Pain: Risk Factors and Current Approaches to Treatment. The Journal of Pain. 2018. (Review summarizing PMPS incidence and risk factors.)
4. Schafer HA, Leathers KO, Mumford KC, Ilangovan S, Vetter IL, Henry SL, Kelley BP, Torres-Guzman RA, Egeland BM. "Toward Breast Reinnervation — What is our Endpoint": A systematic review of normal breast sensibility. Journal of Plastic, Reconstructive & Aesthetic Surgery. 2024;91:383–398. PMID: 38461623.
5. Yan Y, Eisemann B, Mauch JT, et al. Post-Mastectomy Pain Syndrome: An Up-to-Date Review of Treatment Outcomes. Plastic and Reconstructive Surgery — Global Open. 2021. PMCID: PMC8426165. (Systematic review including pooled neuroma excision outcomes.)
6. Kung TA, et al. Surgical Treatment of Post-Surgical Mastectomy Pain Utilizing the Regenerative Peripheral Nerve Interface. ClinicalTrials.gov NCT04530526. (Prospective trial of RPNI for post-mastectomy pain.)
7. Zacest AC, Magill ST, Anderson VC, Burchiel KJ. Long-term outcome following ilioinguinal neurectomy for chronic pain. Journal of Neurosurgery. 2010 Apr;112(4):784-9. PMID: 19780646.
8. Saphenous nerve neuroma after total knee arthroplasty. Mayo Clinic Medical Professionals (educational reference summarizing prevalence and presentation).
9. Regev GJ, Ben Shabat D, Khashan M, et al. Management of chronic knee pain caused by postsurgical or posttraumatic neuroma of the infrapatellar branch of the saphenous nerve. Journal of Orthopaedic Surgery and Research. 2021;16:483. PMCID: PMC8293565.
10. Painful total knee arthroplasty: Infrapatellar branch of the saphenous nerve selective denervation. A case series. The Knee. 2022. (Case series evaluating SF-12, Oxford Knee Score, and NRS pain after neurectomy.) PMID: 36209652.
Closing Disclaimer
This article is educational and does not establish a doctor-patient relationship. It does not replace individualized consultation, examination, or review of personal medical history. Patients with persistent post-surgical pain that may be due to a neuroma are encouraged to seek evaluation by a hand and peripheral nerve specialist for an individualized assessment of their situation and options.
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