Part of Carpal tunnel syndrome
Carpal tunnel vs arthritis: how to tell the difference
Warning signs, and when to get help
Carpal tunnel vs arthritis: what is actually different?
One is a nerve and the other is a joint. That sounds like a technicality until you notice that it changes what you feel. A squeezed nerve changes sensation, so carpal tunnel syndrome announces itself as numbness, tingling, burning and a hand that feels clumsy. The NHS keeps its symptom list short: numb hands, tingling or pins and needles, an ache or pain anywhere in the fingers, hand or arm, and a weak thumb or trouble gripping.
Arthritis works on the joint itself, so it turns up in what the joint can do and in how it looks. OrthoInfo describes early hand arthritis pain as dull or like a burning sensation, says it often follows a period of increased joint use, such as heavy gripping or grasping, and adds that it may start hours later or the next day. Morning pain and stiffness are typical. The joint can swell during or several hours after heavy use, feel warm to touch, and give a sensation or sound of grating or grinding, which clinicians call crepitus. In advanced cases OrthoInfo says the joint may appear larger than normal.
The NHS puts the main symptoms of osteoarthritis as joint pain and stiffness and problems moving the joint, with tenderness, swelling and a grating or crackling sound when you move the affected joints. The split is clear enough. One list is about what you feel; the other is about how a joint works.
Pins and needles are nerve language. Hand osteoarthritis does not usually produce them, so they are worth reporting instead of filing under the arthritis you already know about. Nerve symptoms also favor the thumb side of the hand, which OrthoInfo puts as primarily the thumb and index, middle and ring fingers, and they do not settle on one knuckle you can point to. Readers who get this far often have a second comparison in mind, the nerve at the inner elbow rather than the one at the wrist, and carpal tunnel vs cubital tunnel is the page that takes it.
How can you tell the difference at home?
You cannot settle it at home, and anybody who tells you otherwise is guessing from a description. What you can do is work out which of the two patterns your hand fits, and that is the useful half of an appointment, because it is the half only you have seen.
The nerve pattern tends to look like this:
- numbness or tingling rather than pain on its own
- symptoms that come and go at first, which is how OrthoInfo describes the early course
- waking at night, which OrthoInfo says is common
- relief from moving or shaking the hands, which OrthoInfo also reports
- a thumb that feels weak, with more dropped things than usual
A joint problem usually reads differently:
- stiffness, particularly first thing in the morning
- pain that follows a spell of gripping or grasping, sometimes arriving hours later or the next day
- swelling during or after heavy use of the hand
- a joint that feels warm, or grates and grinds when it moves
- a knuckle or a thumb base that has changed shape or looks bigger than its pair
Night symptoms are not a clean dividing line, though. OrthoInfo says that in advanced hand arthritis the joint pain may wake you up at night, and its page on arthritis of the thumb lists pain at night among the ordinary symptoms of thumb base arthritis rather than only the late ones. The difference in practice is usually in what wakes you: numbness and tingling you shake out, against a joint that aches. That is a clinical impression, not a measured distinction, so treat it as a question worth raising rather than a rule.
Stiffness has a number attached to it, and the number belongs to the clinician, not to you. NICE tells clinicians to diagnose osteoarthritis without imaging in people who are 45 or over, have activity-related joint pain, and have either no morning joint-related stiffness or morning stiffness lasting no longer than 30 minutes (NICE NG226, recommendation 1.1.1), and the NHS puts the same three points to patients. The three go together, and they are weighed alongside an examination rather than counted up at the kitchen table. Morning stiffness in the hands lasting longer than 30 minutes appears on the warning list at the foot of this page for a different reason: inflammatory arthritis. The two conditions on this page overlap, and an assessment is what settles it.
Where it hurts: wrist, thumb base or finger joints
Most people asking this have not yet settled on which joint they mean. Arthritis behaves differently in the wrist, at the thumb base and in the finger joints. Carpal tunnel syndrome has only one address: the wrist.
The wrist joint itself gives pain and stiffness in the wrist, and movement that has been shrinking over months rather than disappearing overnight. If your wrist problem started with a twist, a fall or a break rather than slowly, that history matters for both conditions, and a previously injured wrist is on the NHS list of things that make carpal tunnel syndrome more likely. Wrist sprain covers the twist, and recovery after a wrist fracture covers the break and the months afterward.
The thumb base is the commonest site of hand arthritis that people recognize, and it is also where this question gets confusing, because both conditions can leave a thumb weak. OrthoInfo describes thumb base arthritis as pain at the base of the thumb that comes on with gripping, pinching or turning, with swelling and tenderness in that spot, a bump or bony growth, weakness when gripping or pinching, and limited motion in the thumb. Pain at the base of the thumb takes that apart by exactly where it hurts.
The finger joints are where joint changes are easiest to see. OrthoInfo says that when arthritis affects the end joints of the fingers, the ones nearest the nail, small cysts called mucous cysts may develop, and that these may cause ridging or dents in the nail plate. A nerve compressed at the wrist does not do any of that. Bony enlargement, cysts and a changed nail are joint findings, and they are worth pointing out at the appointment because they are the sort of thing a clinician can confirm in seconds.
There is a third structure people fold into this question, a tendon that has stopped gliding, and that comparison has its own page: carpal tunnel, trigger finger or de Quervain's.
Can arthritis cause carpal tunnel syndrome?
For the wrist, the evidence says probably, and for the thumb base it says probably not. Arthritis appears on the NHS list of conditions that make carpal tunnel syndrome more likely. That is a statement about risk, not a mechanism, so it is worth going to the study that looked at the joints themselves.
One case-control study compared wrist X-rays in 95 people with carpal tunnel syndrome and 99 people without it, with 68 pairs matched for age and sex. Osteoarthritis of the wrist was significantly more common in the carpal tunnel group at every site they measured except one, a small joint on the thumb side of the wrist (the scaphotrapeziotrapezoid joint), and the authors read that as a possible causal link. Arthritis at the base of the thumb showed no such association, and they concluded that it is not a causal factor (Bacle and colleagues, 2018). The mechanism fits what carpal tunnel syndrome is: pressure on a nerve in a narrow passage, where a bony change in or beside that passage leaves the nerve less room in a way the same change elsewhere in the hand would not.
There is also a much larger association across the body, and it needs reading slowly. Using a US health claims database covering all 50 states, adults aged 45 or older diagnosed with osteoarthritis between 2018 and 2022 were matched with adults without it, giving 1,033,439 people in each group. Carpal tunnel syndrome was diagnosed at 7.35 per 1,000 person-years in the osteoarthritis group against 1.44 in the other, an adjusted hazard ratio of 3.80 (95 percent confidence interval 3.54 to 4.07). Hand and wrist osteoarthritis carried the highest risk of any joint site, at a hazard ratio of 8.86 (95 percent confidence interval 8.08 to 9.73), and knee osteoarthritis the lowest, at 2.67 (Chen and colleagues, 2024).
The authors state the limits themselves, and the limits matter here. Claims records do not say why a diagnosis was made, and the diagnostic codes for these two conditions have not been validated for accuracy in the published literature. People with osteoarthritis also carry more other conditions and see doctors more often, which the authors say may make a carpal tunnel diagnosis more likely to be recorded in the first place; they matched the two groups on a comorbidity score to reduce that effect rather than claiming to have removed it. They say it is not clear what explains the association. So it tells you the two travel together, not that one produces the other.
Inflammatory arthritis is a separate route into the same tunnel. OrthoInfo names rheumatoid arthritis, along with diabetes and a thyroid gland imbalance, among the conditions associated with carpal tunnel syndrome, and rheumatoid arthritis has that condition in its own right.
Can you have both at once?
Yes. Common enough that you should expect it, not read it as bad luck. Among 113 patients who had 134 open carpal tunnel operations, 40 percent had arthritis at the base of the thumb on X-ray. Weaker strength in the muscle at the base of the thumb (abductor pollicis brevis) was more common in the patients who also had that arthritis, and four of them developed pain at the thumb base only after the operation, having had none before it, which is why the authors recommend looking for it beforehand (Sugiura and colleagues, 2023). That is a figure from people who had surgery, so it does not tell you the proportion among everyone with carpal tunnel syndrome, and no page should pretend otherwise.
What it changes is what you expect from treatment. If the numbness and the night waking settle while the stiffness and the pain on gripping stay exactly as they were, that is not a treatment that failed. It can mean there were two problems and one of them has been dealt with. Say that at the review appointment in those words, because it is the fastest way to get the second one looked at.
The reverse is just as common and easier to miss. If you have had arthritis in your hands for years and you now have numbness, tingling or a thumb that is losing its grip, that is new information rather than more of the same. It has its own line on the warning list below, with how long to leave it.
What a physio or hand therapist does differently for each
The aim differs, so the plan does too. For the nerve the work is about taking pressure off it, and the NHS points to a wrist splint, sold in some places as a brace, worn at night, along with cutting down on the activities that bring the symptoms on. Our carpal tunnel syndrome program carries the whole of that side, including how to get the splint fit right, the staged exercises and how much to do. The two movement exercises people are usually given are tendon glides and the median nerve glide. If a faint tingle comes on, make the movement smaller; it should settle within a few seconds of stopping. Tingling or numbness that builds with each repetition, lasts after you stop, or makes your night symptoms worse means the exercise is too much. Leave it out or drop back a stage.
For the joint the work is about load, grip strength and keeping the movement you have, and that belongs to hand osteoarthritis, which has the exercises, the joint protection and what to do in a flare. We have deliberately not put an arthritis program on this page. Giving you one before anyone has examined your hand is how a reader ends up working on the wrong problem.
The clearest difference is in the assessment, and what follows is clinic practice, not something a trial has measured. For a suspected nerve problem we test sensation and thumb strength and compare the two hands, and we ask what time of day the symptoms peak. For a suspected joint problem we feel each joint in turn, look for swelling and bony change, and watch what a grip or a pinch does. The same hand can produce findings in both columns. That is the honest reason this question ends up at an assessment instead of online.
In several countries you may be referred to a hand therapist, a physiotherapist or physical therapist who specializes in hands, and either problem sits squarely in their field. Wrist and hand conditions lists the rest of what we cover in this area.
What settles this question properly, and what to bring to the appointment
An examination, plus a test aimed at whichever structure is in question. OrthoInfo describes the examination as starting with your general health and medical history, then pressing down or tapping along the median nerve on the palm side of the wrist, and looking for atrophy in the muscles around the base of the thumb. Those are clinician tests, which is why they are not written on this page as something to try on yourself. Done at home, they produce a result nobody can interpret and a conclusion you may then act on for months.
The tests split along the same line as the symptoms. For the nerve, OrthoInfo says electrophysiological tests measure how well the median nerve is working: nerve conduction studies read the signals in the nerves of your hand and arm, and an EMG measures the electrical activity in muscles. Ultrasound is a third option, using high-frequency sound waves to make pictures of bone and tissue. For the joint, OrthoInfo says that if you have limited wrist motion or wrist pain a doctor may add X-rays to exclude other causes for your symptoms, and names arthritis, ligament injury and a fracture among those causes. That last sentence is this whole page in miniature: the joint side is read off the history and the examination, with a picture where something else has to be excluded, and the nerve side with a test of the nerve. NICE says the same thing about imaging from the other direction: osteoarthritis is diagnosed clinically, and imaging is not used routinely to confirm it unless there are atypical features or features suggesting another or an additional diagnosis (NICE NG226, recommendations 1.1.1 and 1.1.2). So do not expect an X-ray as a matter of course, and do not read the absence of one as nobody having taken the joint seriously.
What to take with you, written down, because fifteen minutes goes quickly:
- when it started, and whether the numbness or the stiffness came first
- what time of day it is worst, and whether anything wakes you
- which fingers or which joints, pointed to rather than described
- what you can no longer do: a jar lid, a key, a steering wheel, buttons, a phone
- any previous wrist injury or operation, and which other joints hurt
- your other conditions and medicines, including diabetes or a thyroid problem, and whether a parent, brother or sister has had either condition
No website can diagnose this, including ours. What this page can do is make sure you arrive with the right information and leave with a name for the problem and a plan that fits it.
When hand symptoms need to be seen sooner
Nearly all of this waits safely for an appointment. The exceptions are set out in the full list at the foot of the page, each with how fast to act.
The nerve side has a clock on it. Numbness that is there all the time, a fleshy muscle at the base of the thumb that looks flatter than on the other hand, and a thumb that is weakening so you keep dropping things mean a doctor within a few days rather than waiting to see whether it settles, and same-day advice if the weakness is getting worse from day to day. The reason is in OrthoInfo: if pressure on the median nerve continues, it can lead to nerve damage, and a hand left too long without treatment can end up with permanent dysfunction.
The joint side has its own urgent few. One joint that suddenly becomes much more painful, hot, red or swollen than your usual flares, or joint pain with a high temperature, needs advice the same day, because joint infection and gout can look alike and a doctor has to tell them apart. Morning stiffness lasting longer than 30 minutes, puffy swelling over the big knuckles, and sore swollen joints in your feet as well mean a doctor within a few days, because that pattern can be inflammatory arthritis, where early treatment matters.
Three more are not really about the hand, and all three are on the list below. Sudden weakness or numbness down one side, a drooping face and speech that will not come out are all reasons to call emergency services, even if they pass off. Numbness in both hands together with hands that have become clumsy with buttons needs advice the same day, because that can come from the neck rather than the wrist. So does pins and needles in an arm alongside neck or arm pain, or an arm that feels heavy or weak, if nobody has checked it yet.
Related exercise programs
Warning signs
Get emergency help now
- Emergency: any sign of a stroke, even if it goes away. That means a face that droops on one side, an arm you cannot lift or keep up, slurred or muddled speech, weakness or numbness on one side of your body or face, sudden blurred vision, double vision or loss of sight, trouble swallowing, sudden dizziness with unsteadiness or falling over, a sudden severe headache, or a sudden fall where your legs give way but you do not black out (a drop attack). Call emergency services straight away.
- Emergency: numbness, tingling or pins and needles in the hand after a fall or injury to the wrist, or a wrist that has changed shape or sits at an odd angle. The same applies to a bone showing through the skin or a cut that is bleeding heavily. Go to an emergency department or call emergency services straight away, and do not drive yourself. The wrist may be broken.
- Emergency: new problems walking, for example your legs feel stiff, heavy or weak or you have become unsteady on your feet, new trouble controlling your bladder or bowels, or hands that suddenly become clumsy, for example you can no longer do up buttons. Call emergency services straight away. These can be signs of pressure on the spinal cord in the neck.
Get help today
- A wrist injury that has left the wrist swollen, bruised or so painful you cannot use the hand, without numbness or a change in shape. Get medical advice the same day.
- Numbness or tingling in both hands together with hands that have slowly become clumsy, for example trouble doing up buttons or dropping things. Get medical advice the same day. These can be signs of pressure on the spinal cord in the neck (cervical myelopathy) rather than a problem at the wrist. If the clumsiness or numbness gets worse quickly, call emergency services straight away.
- Pins and needles in an arm together with neck or arm pain, or an arm that feels heavy or weak, and nobody has checked it yet. Get medical advice the same day.
- One finger joint or the base of your thumb suddenly becomes much more painful, hot, red or swollen than your other joints or than your usual flares, a cyst on the back of a finger bursts or leaks, or you have joint pain with a high temperature or feel hot, cold or shivery. Get medical advice the same day, and go to an emergency department if you feel very unwell. This can be a sign of infection in the joint, which needs treatment quickly. Gout can look much the same, and a doctor needs to tell the two apart. If you have a very high or very low temperature, shivering you cannot control, you are breathing very fast or finding it hard to breathe, you are confused or your speech is slurred, your skin, lips or tongue look blue, gray, pale or blotchy (on brown or black skin this can be easier to see on the palms of the hands or soles of the feet), or you have a rash that does not fade when you press it, call emergency services, as this can be sepsis.
- The pain is there at night or at rest and keeps getting worse. If you are being treated for cancer now, contact your cancer team the same day.
Book an appointment
- Numbness in the hand that is there all the time, the fleshy muscle at the base of your thumb looks flatter or thinner than on the other hand, or your thumb is getting weaker and you keep dropping things. See a doctor within a few days rather than waiting for it to settle. If the weakness is getting worse from day to day or spreads beyond the thumb, get medical advice the same day. In long-standing cases the nerve can be damaged for good, and surgery may be recommended to prevent that.
- Numbness, tingling or pins and needles in your fingers. Osteoarthritis of the hand does not usually cause these, so see a doctor or physio within a week or two to find the cause, such as a trapped nerve at the wrist (carpal tunnel syndrome). If the numbness is there all the time, your hand or thumb is getting weaker, you keep dropping things, or the fleshy muscle at the base of your thumb looks flatter or thinner than on the other hand, see a doctor within a few days. If the weakness is getting worse from day to day, get medical advice the same day.
- Morning stiffness in your hands that lasts longer than 30 minutes, soft, puffy swelling over the big knuckles at the base of the fingers or over the wrists, or painful, swollen joints in your feet as well. This is not an emergency, but see your doctor within a few days, because it can be a sign of an inflammatory arthritis such as rheumatoid arthritis rather than osteoarthritis, and early treatment can stop it getting worse.
- The pain is there at night or at rest and keeps getting worse. If you have had cancer, now or in the past, or are losing weight without trying, see your doctor sooner, within a day or two, and mention it. This applies even if the pain is not getting worse.
- The pain is there at night or at rest and keeps getting worse. See your doctor within a few days.
Common questions
How can you tell the difference between carpal tunnel and arthritis?
By which kind of symptom you have, not by where your hand hurts. Numbness, tingling, burning and a thumb that feels weak point at a nerve, and OrthoInfo adds two details that are easy to recognize: the symptoms often come and go at first, and moving or shaking the hands often relieves them. Stiffness, tenderness over one particular joint, swelling after use, a joint that feels warm or grates when it moves, and a knuckle that has changed shape point at a joint. What neither pattern can do is settle it, because the two are often present together and other things cause hand numbness. The honest version is that you can usually tell which pattern you have, and only an examination can tell you what is causing it.
Is it carpal tunnel or arthritis in my thumb?
Both can make a thumb weak, which is why this one catches people out. Thumb base arthritis hurts in the thumb itself, down where it meets the wrist, and OrthoInfo describes tenderness, swelling and a bump or bony growth in that spot, with the pain coming on when you grip, pinch or turn something. Carpal tunnel syndrome weakens a thumb by a different route, through the nerve that supplies the small muscles at its base, so it arrives with numbness or tingling and without that local tenderness or lump. You cannot settle this one by prodding your own thumb, so the useful thing is to tell whoever examines you which of those two pictures fits your hand. Pain at the base of the thumb sorts thumb pain by exactly where it hurts, and hand osteoarthritis covers what helps if that is what it turns out to be.
Can you have carpal tunnel and arthritis at the same time?
Yes, and that is why clinicians look for the second one. Among 113 patients who had 134 open carpal tunnel operations, 40 percent had arthritis at the base of the thumb on X-ray, and the authors recommend checking for it before the operation (Sugiura and colleagues, 2023). That figure describes people who went on to have surgery, so it is not the proportion among everyone with carpal tunnel syndrome. The practical point is what to expect from treatment. If the numbness settles and the stiffness and grip pain do not, that is not the treatment failing, and it is worth saying so at the review rather than waiting.
Is it carpal tunnel or rheumatoid arthritis?
These are not alternatives in the way the question suggests, because rheumatoid arthritis is one of the conditions associated with carpal tunnel syndrome, which OrthoInfo names alongside diabetes and a thyroid gland imbalance. Rheumatoid arthritis also behaves differently from the wear-and-tear kind: OrthoInfo says it starts most often in the small joints of the hands and feet, and that it usually picks the same joints on both sides of the body. Puffy swelling over the knuckles, morning stiffness that lasts longer than 30 minutes and sore swollen joints in your feet as well are on the warning list at the foot of this page, and they are a reason to see a doctor within a few days rather than something to read about. Rheumatoid arthritis has the condition itself. Diagnosing it needs blood tests and an examination, so it is not a question this or any other page can answer.
Which is worse, carpal tunnel or arthritis?
That question does not have an answer, because the two do different things to a hand and both run from mild to severe. The comparison that does matter is about time. OrthoInfo is plain about the nerve: pressure that continues on the median nerve can damage it, and a hand that goes untreated for too long can end up with permanent dysfunction. So numbness that is there all the time, a flattened muscle at the base of the thumb and a thumb that is weakening carry a time frame with them, and that time frame is on the warning list below. Hand arthritis is a long game of flares and management, and it does not carry that same clock.
References
- NHS. Carpal tunnel syndrome. Page last reviewed 17 April 2024. https://www.nhs.uk/conditions/carpal-tunnel-syndrome/
- NHS. Osteoarthritis. Page last reviewed 20 March 2023. https://www.nhs.uk/conditions/osteoarthritis/
- National Institute for Health and Care Excellence. Osteoarthritis in over 16s: diagnosis and management. NICE guideline NG226. Published 19 October 2022. https://www.nice.org.uk/guidance/ng226
- American Academy of Orthopaedic Surgeons. Carpal tunnel syndrome. OrthoInfo. https://www.orthoinfo.org/en/diseases--conditions/carpal-tunnel-syndrome/
- American Academy of Orthopaedic Surgeons. Arthritis of the hand. OrthoInfo. https://www.orthoinfo.org/en/diseases--conditions/arthritis-of-the-hand/
- American Academy of Orthopaedic Surgeons. Arthritis of the thumb. OrthoInfo. https://www.orthoinfo.org/en/diseases--conditions/arthritis-of-the-thumb/
- Bacle G, Marteau E, Corcia P, Garaud P, Laulan J. Are Carpal Tunnel Syndrome and Regional Degenerative Osteoarthritis Linked? Results of a Case-Control Study. Journal of Hand Surgery (Asian-Pacific Volume). 2018;23(1):41-46. https://doi.org/10.1142/S2424835518500054
- Chen S, Ho T, Asubonteng J, Sobel RE, Eng S, DiMartino SJ, Manthripragada A. Risk of carpal tunnel syndrome among patients with osteoarthritis: a US population-based study. BMC Musculoskeletal Disorders. 2024;25(1):468. https://doi.org/10.1186/s12891-024-07459-1
- Sugiura K, Omura T, Miyagi M, Shibata Y, Matsuyama Y. Prevalence and the Influence of Trapeziometacarpal Osteoarthritis on Patients with Carpal Tunnel Syndrome. Journal of Hand Surgery (Asian-Pacific Volume). 2023;28(1):96-101. https://doi.org/10.1142/S2424835523500029
Written and checked by the PocketPhysio editorial team. Last updated 2026-10-17.
This page is general education, not a diagnosis or a personal treatment plan. See a physiotherapist or doctor for advice about your own situation.