Conditions · Carrollwood · Tampa Bay
Carpal Tunnel Syndrome
Numbness and tingling in the hand can come from the median nerve at your wrist, from a nerve root in your neck, or from both. Telling them apart is what the examination is for.
It is 3am, one hand has gone numb, and you are flapping it over the side of the bed with your phone in the other. The nerve serving those fingers does not begin at your wrist. It is built from roots that leave the spine in your neck. Dr. Bobby Koser, DC, chiropractic physician, completed post-doctoral training in spinal MRI interpretation and clinical correlation, and both ends of that nerve get examined here. Bring any report you have.
Carpal Tunnel Overview
What the words on your report mean
Charts, nerve reports, and bills use language written for other doctors. Here it is in plain words.
The carpal tunnel, and carpal tunnel syndrome
A narrow passage on the palm side of your wrist, about as wide as your thumb. The wrist bones, called the carpals, form the floor and walls, a band of ligament straps across the top, and the median nerve runs through alongside the tendons that bend your fingers. Carpal tunnel syndrome is the name used when hand symptoms in that nerve’s territory are traced by examination to the nerve inside the tunnel.
Also written as: carpal canal; the strap across the top is the transverse carpal ligament, or flexor retinaculum. The syndrome appears as CTS, median neuropathy or mononeuropathy at the wrist, median nerve compression, a pinched nerve in the wrist, and on bills as G56.0.
The median nerve, and where it starts
The nerve carries feeling from the thumb side of the hand and works some of the muscles at the base of the thumb. It does not carry feeling from the little finger, and it does not begin at the wrist: it is built from nerve roots that leave the spine in your neck, which is why pressure on a nerve root there can be felt out in the hand.
Also written as: median nerve distribution, or median sensory distribution.
EMG, nerve conduction study, and distal latency
A nerve conduction study times how long a signal takes to travel along a nerve and compares that with the testing lab’s own reference range. An EMG, short for electromyography, records the electrical activity inside a muscle with a fine needle. Prolonged distal latency means the signal took longer than that reference range to cross the wrist.
Also written as: NCS, NCV, nerve conduction velocity, electrodiagnostic testing, or slowed conduction across the wrist.
A finding is not a diagnosis
Numb, tingling fingers are a reason to be examined, not a diagnosis already made. One general-population study shows why. In one region of southern Sweden, a 1997 health questionnaire went to adults aged 25 to 74, and 2,466 answered. In that survey, 14.4% reported pain, numbness, or tingling in the part of the hand the median nerve serves. Those are symptoms, not diagnoses: 3.8% of all responders were rated on examination as having clinically certain carpal tunnel syndrome, and 2.7% had it confirmed on both examination and nerve conduction testing. The authors estimated that about 1 in 5 people reporting those symptoms would be expected to have it on examination and testing, which read the other way means about 4 in 5 would not.1
That same survey examined 125 people who did not report those symptoms, and nerve conduction testing showed a median nerve abnormality at the carpal tunnel, the same kind of finding used to support the diagnosis, in 18.4% of them.1 Those figures describe one Swedish region in 1997, adults aged 25 to 74, not Tampa today. They cut both ways. A nerve test result is not automatically the cause of what you feel, so it is read together with your history and examination. And the reverse is equally true: your symptoms are not less real because the same words turn up on other people’s results.
1. Atroshi I, et al. Prevalence of carpal tunnel syndrome in a general population. JAMA. 1999;282(2):153-158. PubMed
The wrist, the neck, or both at once
The median nerve can be crowded where it passes through the wrist. A nerve root can be crowded where it leaves the spine in your neck, and the symptoms that follow are what a report calls radiculopathy, translated on our pinched nerve page. Both can be going on in one person, which is why an examination follows the whole nerve rather than stopping at the hand.
Which fingers are involved is the first thing an examiner asks about, and you can notice it tonight. The median nerve’s territory covers the thumb, the index and middle fingers, and the thumb side of the ring finger, and stops short of the little finger. That is a starting question rather than an answer: a nerve root in the neck can involve those same fingers, and a nerve crowded at the elbow writes its own pattern.
Feeling and strength get tested more than one way here, and no single test is the answer. In a 2021 systematic review, the authors gathered sixteen studies covering thirteen sensory and motor hand tests used in diagnosing carpal tunnel syndrome, among them light touch with a fine filament, telling two points of touch apart, and grip and pinch strength. In that review they reported that the evidence was inconclusive on which of those tests had the highest diagnostic accuracy, and concluded that clinicians should not use a single sensory or motor test when deciding on a carpal tunnel diagnosis.2 That review covered sensory and motor tests rather than the rest of an examination, and reports on how tests perform, not on what treatment does.
2. Dabbagh A, et al. Diagnostic accuracy of sensory and motor tests for the diagnosis of carpal tunnel syndrome: a systematic review. BMC Musculoskelet Disord. 2021;22(1):337. PubMed
Symptoms, and the warning signs we screen for
Nerve symptoms have a texture people recognize once it is named: numbness, tingling, pins and needles, burning, or a hand gone to sleep that will not wake up. Night is when people often notice it, and shaking the hand out over the side of the bed is something patients describe doing. Daytime brings an ache through the hand and forearm, clumsiness with buttons and keys, or a grip that fails. When the wrist aches, stiffens, or grinds instead of going numb, our joint pain page covers that.
Some changes move a hand from a plan of care to a referral, and two of them are worth naming here. One is numbness that has stopped coming and going and is now constant. The other is the pad of muscle at the base of the thumb, the thenar eminence, measuring flatter than the pad on the other hand, which a chart calls thenar atrophy. Either one, and the next step is a hand surgeon or a neurology opinion.
Common, and examined here
- Numbness or tingling in the thumb, index, middle, or ring finger
- Hand symptoms that wake you at night
- An ache through the hand and forearm
- A grip that gives out, or dropping things
- Hand numbness alongside neck or shoulder symptoms
- An EMG or nerve report nobody has explained to you
- Hand symptoms that started after a car accident
Emergency, not an appointment
- Sudden numbness or weakness with face drooping, slurred speech, sudden confusion, sudden trouble seeing, or arm and leg weakness on one side. Call 911.
- Escalating pain in a swollen, tight forearm or hand after a fracture, a cast, a crush injury, or new bleeding, with spreading numbness
- A hand or fingers turning pale, dusky, or cold, or going numb with no pulse you can find
- A hot, red, swollen wrist or hand with fever or chills, or redness streaking up the forearm
- Hand weakness getting worse over hours or days, or numbness spreading up the arm
- New numbness or weakness in both hands at once, with new clumsiness, unsteadiness, or legs that give way
- New hand numbness or weakness after a crash, a fall, or a blow to the head or neck
- A deep cut, an open wound, or a deformed-looking wrist after an injury, with numbness below it
Go to the emergency department now. Screening for these is part of the examination here.
How we approach carpal tunnel syndrome
The examination comes first: your history, strength and sensation measured and compared side to side, the wrist, forearm, and elbow examined with the maneuvers written as Phalen’s and Tinel’s, and the neck screened, since the nerve runs through all of it. That visit is the Pain Source Exam. Bring any nerve conduction or EMG report; it gets read with you rather than at you. If a neck report is part of your story, Dr. Koser’s post-doctoral training in spinal MRI interpretation and clinical correlation exists for that conversation.
When conservative care fits, it is built from the examination: chiropractic adjustment where restriction is found at the wrist, the elbow, or the neck, hands-on soft-tissue work, dry needling for the muscles the examination flags, and movement you can keep up with. What was measured at the first visit gets measured again, so the plan changes if you do not.
Some findings send you elsewhere, and saying so is part of the job. A thumb pad measuring flatter than the other side, strength or sensation measuring reduced or worse at a re-check, numbness that has become constant, symptoms that do not match the median nerve’s territory, or a pattern pointing to the elbow rather than the wrist: those go to a hand surgeon or a neurologist, with your records sent along. Hand symptoms alongside both feet, diabetes, thyroid or kidney disease, or inflammatory arthritis start with your primary care physician; pregnancy is coordinated with your obstetrician. When telling the wrist from the neck calls for electrodiagnostic testing, we refer you for it.
Hurt in a car accident? Hand numbness after a crash runs through a different door: Florida’s PIP law requires care to begin within 14 days. Start at our auto accident page.
What the research shows
The studies below are a randomized trial, a study where people agreed to let chance assign their treatment so the paths could be compared fairly, its long-term follow-up, and a review that pools many such trials.
In one trial, run at one hospital system in Spain and enrolling only women, 120 women with carpal tunnel syndrome were assigned by chance to three sessions of manual therapy, meaning hands-on treatment, or to surgery on the carpal tunnel. At 6 and 12 months the two groups looked similar on pain and hand function. Earlier, at 1 and 3 months, the manual therapy group had reported less pain and better hand function. The authors concluded that in women with carpal tunnel syndrome, manual therapy may result in outcomes on pain and function similar to surgery.3
The same trial then followed the same women for four years; it is a follow-up of the same 120 women, not a second study. Of the 120, 97 women, or 81%, completed the four years. The groups showed no significant differences in pain, hand function, or symptom severity at 1 year or at 4 years, and the share who had surgery during those four years was similar in both groups, 15% after manual therapy and 13% after surgery, which read the other way means most of the women who started with manual therapy had not had surgery on the carpal tunnel four years later. Both groups also did a home program of tendon and nerve gliding exercises, so the results describe manual therapy or surgery combined with that home program.4
The widest view comes from Cochrane, an independent international group that pools and grades clinical trials. Its 2024 review combined 14 randomized trials with 1,231 participants, 84% of them women, comparing surgery with non-surgical care for carpal tunnel syndrome. The review cuts both ways. Comparing surgery with splinting, meaning wearing a wrist brace, beyond three months, it found that surgery probably does not provide a clinically important benefit in symptoms or hand function, graded as moderate-certainty evidence, while the same comparison found that surgery probably results in more people improving overall and probably lowers the chance of needing surgery later. The authors concluded that the efficacy of surgery is currently unclear: people whose symptoms are hard to live with, who strongly prefer improvement and do not consider the risks of surgery a burden, may choose surgery, and people whose symptoms are tolerable, who have not tried non-surgical options and want to avoid the risks that come with surgery, can start with non-surgical care and have surgery only if necessary.5
Those are group results, most of them from women, not a prediction for your hand, and finding out where you stand is what the examination is for.
3. Fernández-de-Las Peñas C, et al. Manual Physical Therapy Versus Surgery for Carpal Tunnel Syndrome: A Randomized Parallel-Group Trial. J Pain. 2015;16(11):1087-1094. PubMed
4. Fernández-de-Las-Peñas C, et al. Manual Therapy Versus Surgery for Carpal Tunnel Syndrome: 4-Year Follow-Up From a Randomized Controlled Trial. Phys Ther. 2020;100(11):1987-1996. PubMed
5. Lusa V, et al. Surgical versus non-surgical treatment for carpal tunnel syndrome. Cochrane Database Syst Rev. 2024;1(1):CD001552. PubMed
Common questions about carpal tunnel
Why do my hands go numb at night and wake me up?
Waking with a numb or tingling hand is one of the patterns that brings people in, and it is one of the first things asked about here. The pattern does not name the source: the median nerve at your wrist and a nerve root in your neck can each do it.
Is this carpal tunnel, or is it coming from my neck?
That is what the examination is built to answer. The median nerve is made from roots that leave the spine in your neck, so trouble at either end reaches the same fingers, and both can be involved in one person. The visit examines the wrist, forearm, and elbow, screens the neck, then places what you feel against the findings.
My thumb, index and middle finger tingle but my little finger is fine. What does that tell you?
The median nerve carries feeling from the thumb, index, middle, and the thumb side of the ring finger, and not from the little finger. So that pattern is worth telling us. It is not a verdict on its own, because a nerve root in the neck can involve those same fingers. That is why both ends get examined.
I shake my hand out at night. Does that mean anything?
Examiners have a name for it, the flick sign, because so many people do it before anyone suggests it. It belongs in your history and it is worth mentioning at the visit. What it is not is proof in either direction. It describes what your symptoms do, and the examination is what assigns the meaning.
My grip keeps failing and I drop things. What does that mean?
Strength is the finding that changes the conversation, so it gets measured rather than estimated. Grip and thumb strength are compared side to side, along with the pad of muscle at the base of your thumb. If strength measures reduced, or measures worse at a re-check, that is a referral with your records sent along.
Do I need an EMG or a nerve test before my first visit?
No. Come as you are, and bring any report you already have so it can be read with you. A nerve conduction study times how signals travel along the nerve and compares that with the lab’s reference range. When telling the wrist from the neck calls for that testing, we refer you for it.
It is happening in both hands. Does that change anything?
It changes what the examination looks for. Symptoms in both hands, written on a chart as bilateral, can come from both wrists, from the neck, or from a medical condition that affects nerves more widely, and that last group belongs in a primary care workup first rather than a plan of care here.
Will I end up needing a surgeon for this?
Some people with carpal tunnel syndrome are seen by a hand surgeon, and that decision belongs with a surgeon rather than with a page you found online. What happens here is that strength, sensation, the thumb pad, and whether numbness is constant get measured. When those point toward surgery for carpal tunnel, we say so and refer you.
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This page is general health information and is not medical advice for any individual. The studies summarized describe groups, not any one person’s outcome, and whether your symptoms come from the wrist, the neck, or both is a question for examination, and sometimes for nerve testing we refer you for. Talk to Dr. Bobby Koser, DC, about your own situation, and seek emergency care immediately for the warning signs above.
Find out which end of the nerve it is.
A complete examination with Dr. Bobby Koser, DC, wrist and neck examined, and your findings explained the same day.