The description is consistent enough to point strongly toward the nerve: a band of burning pain that starts near the spine and wraps around one side of the chest or upper abdomen along the line of a rib, made worse by a deep breath or a twist, with a stripe of skin that hurts when a shirt brushes against it. Most people have had it explained as a pulled muscle, a pinched nerve, or — alarmingly — a possible heart problem. When it follows the path of a single rib and burns, the right name is intercostal neuralgia, and it is a nerve problem with a specific test and specific treatments.
Rule out the heart and lungs first
Chest-wall nerve pain is not dangerous in itself. The conditions it can be confused with sometimes are. Before intercostal neuralgia is diagnosed, the dangerous causes of chest pain are excluded — that order is not negotiable.
Call 911 or go to the nearest emergency room, not a clinic appointment, for crushing or pressure-like chest pain, chest pain with shortness of breath, sweating, nausea, or lightheadedness, pain spreading to the arm, neck, or jaw, or sudden breathlessness with sharp pain on breathing. Those can signal a heart attack, a pulmonary embolism, or other emergencies, and they are evaluated immediately. Intercostal neuralgia is the diagnosis that remains after the heart, lungs, and great vessels have been cleared — not a label to apply to undiagnosed chest pain.
What intercostal neuralgia actually is
Each intercostal nerve is the continuation of a thoracic spinal nerve. It runs forward in the costal groove along the underside of its rib, accompanied by the intercostal artery and vein, and supplies the muscles and skin of the chest and upper-abdominal wall in a narrow band. There are eleven pairs, and the band each one serves wraps around the trunk like a hoop. Intercostal neuralgia is neuropathic pain in that distribution — pain generated by the nerve itself rather than by the muscle, joint, or cartilage nearby [1]. That is why it burns and shoots rather than aches, and why the overlying skin is often hypersensitive.
This also explains the differential. A pulled intercostal muscle is a dull mechanical ache that hurts with movement but does not burn. Costochondritis is tenderness directly over the rib-cartilage junctions beside the breastbone, reproduced by pressing there. Two close relatives are pain from the terminal branches of these same nerves: intercostobrachial neuralgia after breast surgery, which is felt in the armpit and inner arm, and anterior cutaneous nerve entrapment (ACNES), which is felt as a focal spot on the abdominal wall. Intercostal neuralgia proper is the band along the rib itself.
What causes it
Chest surgery is the leading cause. Chronic pain after thoracic surgery affects roughly 25 to 60% of patients, and a critical review of the mechanisms concluded that intercostal nerve injury seems to be the most important cause [2]. Breast surgery, rib surgery, and chest-tube placement can injure these nerves the same way. Deliberately cutting the nerve during surgery does not prevent it. In a randomized trial of 172 lung-cancer patients, cutting the intercostal nerve at the start of thoracotomy did not lower the rate of neuropathic pain at day 120, 26.6% versus 28.8% [3].
Shingles is the classic non-surgical cause. Herpes zoster reactivates along a dermatome, and the thoracic dermatomes are the most commonly affected region [4]. The acute rash can be followed by post-herpetic neuralgia — a burning, band-like pain along the same rib that can persist for months. Early nerve blocks may lower the odds of that lasting pain, though the evidence comes from observational studies [5].
Trauma and entrapment. Rib fractures, blunt chest trauma, and even forceful coughing can injure or irritate an intercostal nerve, producing a post-traumatic neuralgia along the affected space [5]. Some cases have no clear trigger at all, with the nerve entrapped or irritated as it courses through the chest-wall muscles.
How it’s diagnosed
After the heart and lungs are cleared, the diagnosis is clinical and then tested with a block. The history is usually distinctive — a band of burning pain along one rib, often after surgery, shingles, or trauma. The examination maps the pain to a single intercostal level and looks for allodynia along that band. Imaging is used to find a cause (a rib fracture, post-surgical change) or to exclude something else, not to make the diagnosis, because a nerve this small is not what a routine scan shows.
The most useful test is an image-guided intercostal nerve block. A small volume of local anesthetic is placed at the costal groove of the suspected nerve under ultrasound or fluoroscopic guidance, both of which have worked better than a blind landmark technique [1]. If the familiar band of pain goes quiet in the anesthetic window, the nerve becomes the likely source, not a certainty, and the block doubles as the first treatment.
Evidence-based treatment
Treatment is stepped, and most of it is in the interventional pain wheelhouse.
Neuropathic-pain medication first. Gabapentin or pregabalin, and topical agents such as a lidocaine patch over the band, are the reasonable starting point for the nerve pain itself.
Image-guided intercostal nerve block. This is the diagnostic test: a small volume of local anesthetic, placed more accurately under ultrasound or fluoroscopy than with a landmark approach [1].
Surgical referral for refractory cases. When the pain keeps returning after a clearly positive diagnostic block, Dr. Movshis refers to a surgeon who focuses exclusively on peripheral nerve entrapment. The surgical evidence is limited. Cutting the nerve during thoracotomy did not prevent chronic pain in the neurectomy trial [3], and there is little published data on neurectomy for established intercostal neuralgia.
Pulsed radiofrequency has been studied at the intercostal nerve and at the nerve root next to the spine. In a 49-patient comparison after chest surgery, only 6.7% treated at the intercostal nerve still had good relief at three months, and treating the nerve root next to the spine did better [6]. Modal Pain does not offer pulsed radiofrequency at the intercostal nerve, and treatment at the nerve root requires referral.
When to see a specialist
Once the heart and lungs have been cleared, see an interventional pain physician if a burning, band-like rib pain has lasted more than a few weeks, has followed chest or breast surgery, has lingered after a bout of shingles, or has not responded to neuropathic-pain medication. When a diagnostic intercostal nerve block is indicated, it tests the nerve and starts treatment at the same time. And do not sit on the emergency features above — for chest pain with pressure, breathlessness, or radiation to the arm or jaw, call 911 or go to the nearest emergency room.
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For the broader framework on peripheral nerve pain, see the peripheral nerve entrapment page. For chest-wall nerve pain after breast surgery specifically, see post-mastectomy nerve pain.
References
This article is reviewed against the peer-reviewed literature. Citations retrieved from PubMed.
- Elkhashab Y, Wang D. A Review of Techniques of Intercostal Nerve Blocks. Current Pain and Headache Reports. 2021;25(10):67. doi:10.1007/s11916-021-00975-y · PubMed
- Wildgaard K, Ravn J, Kehlet H. Chronic post-thoracotomy pain: a critical review of pathogenic mechanisms and strategies for prevention. European Journal of Cardio-Thoracic Surgery. 2009;36(1):170-80. doi:10.1016/j.ejcts.2009.02.005 · PubMed
- Koryllos A, Althaus A, Poels M, et al. Impact of intercostal paravertebral neurectomy on post thoracotomy pain syndrome after thoracotomy in lung cancer patients: a randomized controlled trial. Journal of Thoracic Disease. 2016;8(9):2427-33. doi:10.21037/jtd.2016.07.93 · PubMed
- Shiraki K, Toyama N, Shiraki A, Yajima M. Age-dependent trigeminal and female-specific lumbosacral increase in herpes zoster distribution in the elderly. Journal of Dermatological Science. 2018;90(2):166-71. doi:10.1016/j.jdermsci.2018.01.009 · PubMed
- Sir E, Eksert S, Ince ME, et al. A Novel Technique: Ultrasound-Guided Serratus Anterior Plane Block for the Treatment of Posttraumatic Intercostal Neuralgia. American Journal of Physical Medicine & Rehabilitation. 2019;98(11):e132-e135. doi:10.1097/PHM.0000000000001121 · PubMed
- Cohen SP, Sireci A, Wu CL, Larkin TM, Williams KA, Hurley RW. Pulsed radiofrequency of the dorsal root ganglia is superior to pharmacotherapy or pulsed radiofrequency of the intercostal nerves in the treatment of chronic postsurgical thoracic pain. Pain Physician. 2006;9(3):227-35. PubMed
Frequently Asked Questions
Intercostal neuralgia is neuropathic pain in the distribution of an intercostal nerve — the nerves that run in the groove under each rib and supply the chest and upper-abdominal wall. The pain is typically a burning, stabbing, or electric band that follows one rib space and wraps from the back around toward the front of the chest or abdomen, often with skin that is hypersensitive to light touch. It is a nerve problem, not a muscle or cartilage problem, which is why it does not behave like a simple strain.
A band of burning, stabbing, or shooting pain along one rib, usually on one side, that can wrap from the spine around to the front. It is often made worse by deep breathing, coughing, laughing, twisting, or reaching, and the overlying skin can be painfully sensitive to clothing or a light touch (allodynia). Because the pain moves with breathing and is in the chest, it is frequently mistaken at first for something in the heart or lungs — which is exactly why those have to be ruled out before the nerve is blamed.
The common causes are surgery, shingles, and trauma. Chest surgery is a major one: chronic pain follows thoracotomy in roughly 25 to 60% of patients, and intercostal nerve injury is considered the most important mechanism. Breast and other chest-wall surgery can do the same. Shingles (herpes zoster) most often strikes the thoracic dermatomes, and can leave lasting post-herpetic neuralgia along a rib. Rib fractures and chest trauma are another common trigger, and some cases are idiopathic — the nerve is irritated or entrapped without a clear inciting event.
A heart attack or other cardiac and lung emergencies are ruled out first — crushing chest pressure, shortness of breath, sweating, or pain radiating to the arm or jaw needs emergency care, not a clinic visit. Once those are excluded, the difference from musculoskeletal causes is the quality and pattern. A pulled intercostal muscle is a dull, mechanical ache that hurts on movement but is not burning or electric. Costochondritis is tenderness right over the rib-cartilage junctions near the breastbone, reproduced by pressing there. Intercostal neuralgia is neuropathic — burning, band-like, following the nerve, with skin hypersensitivity — and an intercostal nerve block that relieves the pain makes the nerve the likely source.
Treatment is stepped. Neuropathic-pain medications (such as gabapentin or pregabalin) and topical agents come first. The key step is an image-guided intercostal nerve block with a small volume of local anesthetic, which is the diagnostic test. Ultrasound- or fluoroscopy-guided blocks have worked better than landmark-based ones. When a block clearly relieves the pain but the pain keeps returning, Dr. Movshis refers to a surgeon who focuses exclusively on peripheral nerve entrapment, though surgical evidence for established intercostal neuralgia is limited.
It does two jobs at once. Numbing the suspected intercostal nerve with local anesthetic tests the diagnosis. If it clearly relieves your familiar band of pain, the nerve is the likely source, not a certainty. In a review of the published techniques, ultrasound- and fluoroscopy-guided blocks worked better than a blind landmark technique, and ultrasound may also lower the already low risk of complications. When it clearly relieves the pain but the pain keeps coming back, the next step is referral to a surgeon who focuses exclusively on peripheral nerve entrapment.
Most commercial PPO plans cover an evaluation for intercostal neuralgia and image-guided intercostal nerve blocks, often with prior authorization. We check your benefits and go over what your plan covers and any expected cost by phone before your visit, so there are no surprise bills. We accept most commercial PPO plans, including Aetna, Anthem Blue Cross Blue Shield, Cigna, Empire Blue Cross Blue Shield, the Empire Plan, Oscar, Oxford, UMR and UnitedHealthcare, and do not accept Medicare, Medicaid, HMO plans, or workers' compensation. Check your plan or call (646) 290-6660.
