Chronic Groin Pain After Hernia Surgery: When a Nerve Is the Cause
Chronic groin pain after hernia repair affects up to 18% of open repair patients, with 10–12% reporting clinically significant pain. Dr. Brian Kelley, an Austin nerve surgeon, walks through how to distinguish nerve injury from mesh-related causes, hernia recurrence, and other contributors, plus treatment options from diagnostic blocks through selective neurectomy, triple neurectomy, and modern adjuncts including TMR and RPNI. Randomized trial outcomes data 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 3, 2026 · Last updated: June 3, 2026
Educational content. Not a substitute for individualized medical evaluation.
Introduction
Inguinal hernia repair is one of the most common operations in surgery, with more than 20 million performed worldwide every year. For most patients the operation works well and they get back to their lives. For a meaningful minority, however, chronic groin pain develops afterward and doesn't go away.
A specific subset of these patients have nerve injury as the cause. The pain is real, it is anatomically explainable, and in many cases it is treatable. This post is for those patients and the providers who care for them.
I practice as a double board-certified plastic and hand surgeon in Austin, Texas. I take referrals from across Texas for chronic post-surgical pain, including chronic post-herniorrhaphy pain when a nerve injury is suspected. My published work includes co-authored research on regenerative peripheral nerve interface (RPNI) for symptomatic neuromas,1 and a first-author systematic review on postoperative pain in hand surgery.2
This post lays out what is known about chronic groin pain after hernia repair, how to distinguish nerve pain from other causes, the treatment options including modern surgical approaches, and what realistic outcomes look like.
How Common Is Chronic Groin Pain After Hernia Repair?
The reported incidence varies widely across studies, depending on definitions, follow-up duration, and the surgical approach studied. A systematic review of risk factors for chronic postoperative inguinal pain (CPIP) found that 18% of patients reported CPIP after open inguinal hernia repair and 6% after laparoendoscopic groin hernia repair, with clinically significant pain (interfering with daily activities) in 10 to 12% of patients and debilitating pain in 0.5 to 6%.3
A meta-analysis of neurectomy techniques noted that reported incidence ranges from 0.7 to 43.3% in the broader literature, with the variability driven primarily by how pain is defined and measured rather than by true differences in biology.4
The bottom line: chronic groin pain after hernia repair is common enough to be a real clinical problem, and severe enough in 1 to 6 patients per 100 to substantially affect quality of life and work.
The Three Nerves at Risk
Three nerves run through the inguinal region and can be injured during hernia repair. Understanding which nerve is involved is the foundation of accurate diagnosis and effective treatment.
The ilioinguinal nerve runs along the spermatic cord (in men) or round ligament (in women) and supplies sensation to the upper inner thigh, the base of the penis and upper scrotum (in men), or the mons pubis and labium majus (in women). Ilioinguinal neuralgia is the most commonly recognized form of chronic post-hernia nerve pain and affects approximately 10% of inguinal hernia repair patients.5
The iliohypogastric nerve runs slightly above the ilioinguinal and supplies sensation to a small area of skin above the inguinal ligament and the upper part of the gluteal region. Iliohypogastric neuralgia produces pain in a slightly more lateral and superior distribution.
The genitofemoral nerve has two branches. The genital branch runs through the inguinal canal and supplies the cremaster muscle and a small patch of skin in the scrotum or labium. The femoral branch passes under the inguinal ligament to supply a small area of the upper anterior thigh. Genitofemoral neuralgia often presents with testicular pain in men or labial pain in women, along with pain in the inguinal crease.
All three nerves can be cut, stretched, entrapped in mesh, or trapped in scar tissue during inguinal hernia repair. Operative series of refractory groin pain have documented entrapment or injury in the majority of explored cases when the patient is appropriately selected.
How Nerve Pain Differs From Other Causes of Chronic Groin Pain
This is one of the most important parts of the evaluation, because the treatment differs substantially depending on the cause.
Nerve pain (neuropathic CPIP) is typically sharp, burning, electric, or shooting in quality. It often has a focal trigger point — a specific spot where pressure or tapping reproduces the patient's typical pain.
The pain commonly radiates along the distribution of the affected nerve: down the inner thigh, into the scrotum or labium, or around to the back. It is often worse with specific activities or positions, and may be relieved temporarily by a diagnostic local anesthetic injection at the trigger point.
Mesh-related pain (non-neuropathic CPIP) is typically a more diffuse, dull aching sensation across the groin without a discrete trigger point. It is often worse with strenuous activity but does not have the neuropathic quality of burning or electric pain.
Mesh-related pain may be from inflammation around the mesh, mesh fixation against the pubic tubercle (sometimes by staples or tacks), mesh fold or contraction, or mesh-related fibrotic reaction. In a minority of patients, mesh removal is the operation that resolves the pain.
Hernia recurrence typically presents with a palpable bulge that becomes more prominent with standing or straining. Pain is often present but is usually more of a heaviness or aching with activity rather than the burning or electric pain of neuropathic CPIP. A careful examination — sometimes supplemented by ultrasound or CT — distinguishes recurrence from other causes.
Spermatic cord pain in men can present with testicular pain (orchialgia), pain with ejaculation, or pain with sexual activity. This may be from genitofemoral nerve irritation, mesh-related inflammation around cord structures, or vas deferens involvement. The evaluation overlaps with general groin pain evaluation but adds urological considerations.
Sportsman's hernia (athletic pubalgia) is a related but distinct entity involving the posterior inguinal wall, conjoint tendon, or pubic attachments. It is most common in athletes and produces deep groin pain with cutting and twisting motions. It is typically not caused by the prior surgery itself.
A careful history and physical examination distinguish most of these in the office. Where uncertainty remains, diagnostic blocks and selective imaging help clarify.
Diagnosis
The diagnosis of chronic nerve-related groin pain is fundamentally clinical, supplemented by selective use of imaging and diagnostic blocks.
A typical history includes pain at or near the prior surgical site that began within weeks to months after the operation and has not resolved. The pain has neuropathic quality (burning, electric, shooting), reproduces with pressure over a specific trigger point, and radiates in a recognizable nerve distribution.
A focused examination identifies the trigger point. Tapping or pressing over the suspected nerve reproduces the pain. The sensory distribution helps identify which nerve is affected. A careful examination also evaluates for evidence of hernia recurrence, palpable mesh-related findings, and signs of other contributing problems.
Diagnostic nerve blocks are essential before considering any surgical management. A small volume of local anesthetic, often injected under ultrasound guidance, should provide temporary substantial relief of the patient's typical pain. A positive block strongly supports the diagnosis and predicts the likely benefit of surgical management of that nerve. A negative block — or relief in a distribution that doesn't match the patient's symptoms — argues against nerve injury as the dominant problem and should prompt reconsideration of the diagnosis.
Imaging is used selectively. Ultrasound or CT can identify hernia recurrence, mesh-related findings (fluid collections, mesh malposition), and sometimes the affected nerve directly. MRI is occasionally useful for proximal nerves or atypical presentations. None of these tests is required to diagnose chronic nerve pain, but they help when alternative diagnoses are being considered.
The diagnostic workup often takes several visits to complete, and the order of testing depends on what the history and examination reveal first. A surgeon who is willing to take the time to do this carefully is meaningfully more likely to identify the correct cause and recommend the correct treatment.
Treatment Options
Treatment ranges from conservative measures to several distinct surgical approaches. The right path depends on severity, response to non-surgical management, and the specific cause identified.
Conservative Management
Initial management for most patients is non-surgical and includes neuropathic pain medications (gabapentinoids, tricyclic antidepressants, SNRIs, duloxetine), topical agents (capsaicin, lidocaine patches), physical therapy with desensitization techniques, and selective nerve blocks for both diagnostic and therapeutic effect.
Many patients with mild to moderate CPIP improve with this approach over months. Others stabilize at a level of pain they consider tolerable. For patients whose pain remains severe and significantly limits function despite an adequate trial of conservative care, surgical options enter the conversation.
Diagnostic and Therapeutic Nerve Blocks
A nerve block does two things at once: it confirms which nerve is affected (by producing temporary relief in the patient's specific pain pattern), and it sometimes produces lasting relief in patients whose pain has a substantial inflammatory component.
The GroinPain Trial, a randomized controlled study published in Annals of Surgery, randomized 54 patients with confirmed neuropathic CPIP to either repeated tender-point infiltration (lidocaine, corticosteroid, hyaluronic acid) or to a tailored surgical neurectomy.
Successful pain relief was achieved in 22% of injection patients versus 71% of neurectomy patients, with a 3-fold difference favoring surgery.6 The trial concluded that a step-up strategy — starting with injection therapy and proceeding to neurectomy if injection fails — is a reasonable approach for patients with confirmed neuropathic CPIP.
Selective Neurectomy
For patients with neuropathic CPIP confirmed by examination and diagnostic block, selective surgical division of the affected nerve (or nerves) is the most established intervention.
The original published work on selective ilioinguinal neurectomy was a 26-patient series at Oregon Health & Science University. The authors reported complete or partial pain relief in 66.7% of patients at long-term follow-up, with a meaningful proportion experiencing some recurrence of pain over time.5
A more recent meta-analysis of 142 patients undergoing endoscopic retroperitoneal triple neurectomy reported encouraging short-term pain control, though the technique requires a specialized minimally invasive approach not available at all centers.7
The most comprehensive recent meta-analysis of neurectomy techniques (open, laparoscopic transabdominal, endoscopic retroperitoneal, and combined) found that neurectomy is an effective treatment for neuropathic CPIP across surgical techniques, with the endoscopic retroperitoneal approach producing the highest improvement rate (95.5%) but also the highest complication rate (28.7%). Across all techniques studied, approximately 7.1% of patients continued to have severe residual pain despite adequate neurectomy.4
Triple Neurectomy
In some patients with refractory pain involving multiple nerves, division of all three nerves (ilioinguinal, iliohypogastric, and genitofemoral) is the appropriate operation. This is more invasive than selective single-nerve neurectomy and carries higher risk of sensory deficits and complications, but produces meaningful pain relief in carefully selected patients who have failed less aggressive approaches.
Modern Techniques: TMR and RPNI for Chronic Nerve Pain
The traditional concern with neurectomy is that cutting the affected nerve may itself produce a painful neuroma at the cut end. Two modern techniques address this directly.
Targeted muscle reinnervation (TMR) involves coapting the cut nerve to a nearby motor nerve branch supplying an expendable muscle. The regenerating axons grow into productive reinnervation rather than forming a disorganized neuroma.
Regenerative peripheral nerve interface (RPNI) wraps the cut nerve end in a small free muscle graft, where regenerating axons form new neuromuscular junctions within the graft.
Both techniques have been adapted from amputation-pain management and prosthetic control into broader nerve pain practice. Published data on TMR and RPNI for symptomatic nerve pain show greater than 80% pain relief in pooled series, though most of this evidence comes from amputation and other nerve injury contexts rather than from large CPIP-specific series.1
In my practice, when I perform neurectomy for chronic post-hernia nerve pain, I combine the neurectomy with TMR or RPNI to address the cut end of the divided nerve and reduce the risk of recurrent neuroma pain. This is a more involved operation than simple neurectomy alone, but the addition is intended to improve durability of pain relief by returning the nerve to function and hopefully avoiding neuroma pain from the neurectomy.
Mesh Removal
For patients with predominantly non-neuropathic CPIP from mesh-related causes — mesh malposition, mesh contraction, mesh fixation problems, or mesh-related inflammation — mesh removal may be the appropriate operation. This is typically performed by a general surgeon experienced in complex hernia revision, often in coordination with a peripheral nerve specialist if a nerve component is also present.
Mesh removal carries its own risks including hernia recurrence (requiring a different repair approach), wound healing problems, and the possibility that pain does not improve. Patients with a clear neuropathic component and a positive nerve block typically benefit more from neurectomy than from mesh removal alone.
For patients with mixed neuropathic and mesh-related pain, a combined operation addressing both components is sometimes appropriate. For simple mesh related issues that don't involve neuropathic pain, a consultation with your hernia surgeon is appropriate.
Patient-Reported Outcomes
Patient-reported outcomes after surgical management of chronic post-hernia nerve pain are favorable in the published literature, though most of the evidence comes from single-center retrospective series rather than large prospective trials with validated quality-of-life instruments.
The Zacest et al. ilioinguinal neurectomy series reported 66.7% partial or complete pain relief at long-term follow-up.5 The GroinPain Trial reported 71% success with tailored neurectomy at randomized comparison, with median VAS pain score dropping from 60 to 14 in crossover patients.6 The 2025 systematic review of neurectomy techniques found that endoscopic retroperitoneal triple neurectomy produced 95.5% improvement rates in pooled analysis, with 7.1% of patients across all techniques experiencing persistent severe pain despite operation.4
Notably, the GroinPain Trial reported that two-thirds of patients on worker's compensation returned to work after neurectomy6 — a functional outcome that matters substantially to patients dealing with chronic pain.
The honest summary: in carefully selected patients with confirmed nerve injury, surgical management produces meaningful pain relief in the majority. A meaningful minority do not respond as well, and a small subset experience little or no improvement. Patient selection, surgical technique, and the underlying pathology all matter.
Why Timing and Selection Matter
A few specific points that the data make clear:
Patient selection drives outcomes. Neurectomy works best in patients whose pain has clearly neuropathic features (focal, neuropathic-quality pain, positive Tinel sign, response to diagnostic block) and whose history is consistent with nerve injury at the time of the original operation. Patients with diffuse non-localized pain, central sensitization features, or pain that doesn't respond to diagnostic block are less likely to benefit from nerve-directed surgery.
Conservative management should be tried first. Many patients with mild to moderate CPIP improve over months with medication and therapy, and reserving surgery for those who fail conservative care produces better selection.
Timing matters less for sensory nerves than for motor nerve injuries. Chronic ilioinguinal, iliohypogastric, and genitofemoral nerve pain can be addressed years after the original surgery with meaningful results. The functional urgency of motor nerve reconstruction (where muscles atrophy if not reinnervated within roughly 12 to 18 months) does not apply in the same way to these sensory nerve problems.
Mesh removal and neurectomy are different operations addressing different problems. A patient told they need mesh removed for nerve pain should have a careful evaluation to confirm that the nerve component has been correctly identified. Conversely, a patient told to undergo neurectomy when the pain is actually mesh-related deserves the same careful workup before any operation.
Recovery and What to Expect
Recovery from selective neurectomy is typically straightforward. Most operations are outpatient. The incision heals over a couple of weeks. Pain relief — when it occurs — typically begins within days for the local-anesthetic effect, then continues to evolve over weeks as the cut nerve stabilizes and any inflammation settles. See my RPNI recovery timeline for more description of nerve related pain resolution.
Restricted activity is typically four to six weeks, with gradual return to normal activity over six to eight weeks. The final result regarding pain relief is typically apparent at three to six months.
Triple neurectomy and combined operations (neurectomy plus mesh revision) involve slightly longer recovery and more restricted activity, but most patients are back to baseline function within a few months.
Two specific things to expect: first, neurectomy produces some sensory loss in the distribution of the divided nerve (this is the trade-off — relieving pain by removing the nerve also removes the normal sensation that nerve provides). Most patients tolerate this well and consider it a worthwhile exchange. Second, residual pain at lower intensity than preoperative is common even after successful operation, and this is generally acceptable to patients whose preoperative pain was severe.
Risks
Neurectomy surgery shares the general risks of any procedure: bleeding, infection, scarring, anesthetic complications. Specific risks include:
- Persistent or recurrent pain despite technically successful surgery
- Painful neuroma formation at the cut end of the divided nerve (the risk this carries is part of why I use TMR or RPNI in conjunction with neurectomy in many cases)
- Sensory loss in the distribution of the divided nerve (this is intentional but worth understanding)
- Worsening pain in a small minority of patients
- Hernia recurrence if the original repair is disturbed during exploration
The risks are generally low in experienced hands, but they are real, and the realistic likelihood of meaningful benefit should be weighed against them. The diagnostic block is genuinely important in this calculation — patients with strongly positive blocks have substantially better operative outcomes than patients with equivocal or negative blocks.
Selecting a Surgeon
For chronic post-hernia nerve pain, several considerations matter when choosing where to be evaluated:
Fellowship training in peripheral nerve surgery, hand and microsurgery, or a related subspecialty. The nerve surgery components may benefit from specialty training and experience with modern adjuncts (TMR, RPNI).
Experience with chronic pain evaluation. A good evaluation distinguishes nerve pain from mesh pain, recurrence, and other causes — and the surgeon's familiarity with this differential matters substantially. I generally recommend consultation with your hernia surgeon or a second opinion prior to consultation to insure full hernia care.
Access to ultrasound-guided diagnostic blocks. Either the surgeon performs them, or they have a reliable interventional pain physician partner who does.
Willingness to coordinate with general surgery. For complex pathology, severe hernia recurrence or patients needed complex reconstruction, multidisciplinary team access (including nerve surgery, general surgery, urology, gynecology, etc) may be necessary.
Honest counseling about realistic outcomes. Be cautious of any surgeon who guarantees pain relief — honest specialists describe ranges of likely outcomes based on the published literature and individual factors.
A Note on Local Care in Central Texas
Patients in Austin and across Central Texas with chronic groin pain after hernia repair deserve careful evaluation by a peripheral nerve specialist comfortable with the differential diagnosis and the full range of treatment options. I see patients from across Central Texas for evaluation of chronic post-hernia nerve pain, including patients who have already been evaluated elsewhere and are seeking a second opinion.
Referrals from primary care, pain medicine, general surgery, and the original treating surgical teams are welcome.
Related Topics
- Peripheral nerve surgery, RPNI, and TMR
- Painful neuroma after prior surgery
- TMR vs. RPNI: what is the difference?
- Nerve transfers vs. nerve grafts: how surgeons choose
- When to seek a second opinion after nerve surgery
- When your EMG is normal but the pain is real
- Finding a peripheral nerve surgeon in Texas
Frequently Asked Questions
Nerve pain after hernia repair is typically sharp, burning, electric, or shooting in quality. It often has a specific trigger point where pressure reproduces the pain, and it radiates in a recognizable distribution — down the inner thigh, into the scrotum or labium, or around to the back. Mesh-related pain is typically more diffuse and aching.
The distinction is made by a careful examination, often supplemented by a diagnostic nerve block that should temporarily relieve nerve pain but not other causes.
Possibly, but not necessarily. Mesh removal is appropriate when the pain is clearly mesh-related (mesh malposition, fixation problems, contraction). It is not the answer when the pain is from nerve injury rather than from the mesh itself. Many patients with chronic groin pain after hernia repair benefit more from selective neurectomy than from mesh removal. The diagnosis drives the operation, not the other way around.
I recommend consultation with your hernia surgeon or potentially a second opinion to confirm that pain is not a mesh related issue or recurrent hernia.
Ilioinguinal neuralgia is chronic pain in the distribution of the ilioinguinal nerve following injury, entrapment, or compression of the nerve. It is one of the most common nerve-related causes of chronic groin pain after inguinal hernia repair and affects approximately 10% of inguinal hernia repair patients. Symptoms typically include burning, sharp, or electric pain at the surgical site radiating to the upper inner thigh, scrotum, or labium, often with a trigger point on examination.
Reported outcomes vary by patient selection and technique. The randomized GroinPain Trial showed 71% success with tailored neurectomy compared with 22% success with injection therapy. A 26-patient series reported 66.7% partial or complete pain relief at long-term follow-up. A recent meta-analysis of endoscopic retroperitoneal techniques reported up to 95.5% improvement rates in pooled analysis, though approximately 7.1% of patients across all neurectomy techniques continue to have severe pain despite operation.
Modern techniques, such as TMR and RPNI have not been fully explored for hernias but help prevent post neurectomy neuroma pain and are effective in other nerve transection procedures like amputations. In my practice, this is usually more favorable than neurectomy alone.
Selective neurectomy divides only the specific nerve identified as the cause of pain (most commonly the ilioinguinal nerve). Triple neurectomy divides all three nerves at risk (ilioinguinal, iliohypogastric, and genitofemoral). Selective neurectomy is the appropriate first operation in most cases. Triple neurectomy is reserved for patients with multi-nerve involvement or refractory pain despite selective neurectomy.
Yes, in the distribution of the divided nerve. Cutting the nerve removes both the painful signaling and the normal sensation it provides. Most patients consider this a worthwhile trade-off when the preoperative pain was severe — the numbness is generally well tolerated and far less disruptive than the chronic pain it replaces.
No - not necessarily. Unlike motor nerve injuries (where muscle atrophy creates a 12 to 18 month window), chronic sensory nerve pain can be addressed years after the original surgery with meaningful results. The strongest predictor of a favorable outcome is not how recent the surgery was but whether the diagnosis is correct (confirmed by examination and diagnostic block) and whether the patient is otherwise an appropriate surgical candidate.
There are poorly understood pain feedback loops in the brain that may benefit from addressing pain earlier, but this is more speculative than evidence based.
For most patients with genitofemoral or ilioinguinal pain affecting sexual or testicular discomfort, neurectomy can improve these symptoms meaningfully. The specific outcome depends on which nerve is involved and what other contributing factors are present (mesh-related inflammation around cord structures, vas deferens involvement, central sensitization). A careful preoperative evaluation that addresses these factors explicitly is part of the consultation.
1. 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.
2. 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.
3. Bjurström MF, Nicol AL, Amid PK, Chen DC. Risk factors of chronic pain after inguinal hernia repair: a systematic review. Pain Practice. 2019. PMID: 31579738.
4. Impact of different neurectomy techniques on managing chronic pain after inguinal hernia repair: a meta-analysis and systematic review. Hernia. 2025. PMCID: PMC12343651.
5. Zacest AC, Magill ST, Anderson VC, Burchiel KJ. Long-term outcome following ilioinguinal neurectomy for chronic pain. Journal of Neurosurgery. 2010;112(4):784–789. PMID: 19780646.
6. Verhagen T, Loos MJA, Scheltinga MRM, Roumen RMH. The GroinPain Trial: A Randomized Controlled Trial of Injection Therapy Versus Neurectomy for Postherniorraphy Inguinal Neuralgia. Annals of Surgery. 2018;267(5):841–845. PMID: 28448383.
7. Taha-Mehlitz S, Taha A, Janzen A, Saad B, Hendie D, Ochs V, Krähenbühl L. Is pain control for chronic neuropathic pain after inguinal hernia repair using endoscopic retroperitoneal neurectomy effective? A meta-analysis of 142 patients from 1995 to 2022. Langenbeck's Archives of Surgery. 2023. PMCID: PMC9849289.
8. American Society for Peripheral Nerve — patient resources and surgeon directory: https://www.peripheralnerve.org/.
9. American College of Surgeons — patient education on hernia repair and complications: https://www.facs.org/.
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 chronic groin pain after hernia repair are encouraged to seek evaluation by a peripheral nerve specialist for an individualized assessment.
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