Is It RSI? What Repetitive Arm Pain Usually Turns Out to Be.
Repetitive strain injury (RSI) · Leslie Budzynski DC, GCC-registered chiropractor (No. 00043), 39 years in practice · Bournemouth Chiropractic, 42 Branksome Hill Road, Bournemouth BH4 9LE
Almost nobody arrives at my clinic saying “I think I have lateral epicondylalgia.” They do say “I have pain in my arm” or “I think I’ve got RSI.“
RSI is the term most people have heard of, and it can affect a host of people and professions. Whether patients spend their day at a desk on a keyboard, on the tools, lifting a baby in and out of a car seat, holding a hairdresser’s scissors, playing an instrument or gripping handlebars for hours. After a few months of the sensation and discomfort of aching forearms, a wrist that hurts on and off every week and gets progressively worse as the week goes on or a hand that tingles later in the day, it feels like the obvious, familiar label.
Taken literally, repetitive arm strain is exactly what the words say. Repetitive means the same movement done repeatedly, over and over again and strain means tissue that is asked to do more than it is currently ready for. Put those two together and you have the reason why an arm starts to ache. and hence the name repetitive strain injury. A movement your body could once carry out and absorb without complaint has, through an increase in sheer volume, outpaced what your tissues can recover from between uses. Volume has outrun pace.
RSI is a description, not a diagnosis. As a description of pain it tells you roughly where it hurts and what you were doing at the time that the pain came about. It does not tell you which structure of your arm your pain is originating from, so it is not always easy to self-manage.
This post on RSI explains what repetitive arm pain usually turns out to be, how each of the separate conditions presents and where to go next. Whether you type all day, lay bricks, cut hair, play the violin, cycle competitively or spend hours holding a small child, if your arms have started nagging, this is an article worth reading.
What “RSI” actually means.
Repetitive strain injury is one of several names for the same broad territory. You will also see it called work-related upper limb disorder (WRULD), cumulative trauma disorder, occupational overuse syndrome and in the research literature, complaints of the arm, neck or shoulder (CANS). All of these describe symptoms arising from repetitive work, sustained awkward postures or sustained force, rather than naming a single condition.[1]
The useful distinction is this: some of what gets called RSI is a specific condition with clear diagnostic criteria, carpal tunnel syndrome being the classic example.[1] The rest is non-specific: an arm pain that is often diffused and does not relate neatly onto one structure. Both are real but only the first can be aimed at precisely, which is why “RSI” as a working label leaves people stuck. The question that moves you forward is not “is this RSI?” but “which of these is it, specific or non-specific?”. That way we know the source and can correctly diagnose it and move forward with an effective treatment plan.
The usual suspects and how each one announces itself
In practice, a case of repetitive strain injury, whatever the trigger may have been, falls into a handful of recognisable patterns.
At the wrist and hand. Carpal tunnel syndrome is the best known complaint: tingling and numbness in the thumb, index and middle fingers, classically waking you at night and eased by shaking the hand. Its close neighbour, cubital tunnel syndrome which presents pain in the ring and little fingers, usually worse with the elbow bent, which is why phone-to-ear and elbow-on-desk habits aggravate it. Thumb-side wrist pain that stabs when you lift is more likely De Quervain’s tenosynovitis. Osteoarthritis, when you experience a deep ache at the base of the thumb when pinching, particularly from midlife on, points to thumb arthritis.
At the elbow. A precise, pain at a bony point of the outside or inside of the elbow that flares with gripping, lifting and mouse use, opening a jam-jar could be either tennis or golfer’s elbow, depending on which side. You do not need to play either sport to have this condition and most people who have it never have done.
At the shoulder. Repetitive overhead work, screen work and any sustained arm posture will load the shoulder girdle more than people expect.. An ache over the outer upper arm that catches when reaching or lifting suggests rotator cuff pain, which also covers the bursa, biceps tendon and shoulder muscle strain. Pain right on the top of the shoulder which is tender to press, points to the acromioclavicular joint or AC joint. A shoulder stiffening in every direction over months is a different problem: which could be a frozen shoulder. A deep, grinding ache with stiffness could be shoulder arthritis. The full picture sits on my shoulder and arm pain pages, with more in my guide to shoulder pain and chiropractic.
Coming from somewhere else entirely: Two patterns catch people out. Arm symptoms that shift when you move your head or that follow a strip of altered sensation down the arm into specific fingers, often start in the neck rather than the arm: see neck pain and headaches and my post on a trapped nerve in the neck. A heavy, easily-tired arm with tingling that worsens when working overhead or carrying may be thoracic outlet syndrome, which sits between the neck and shoulder and gets missed regularly. Diagnosis is key.
At a glance: what your repetitive arm pain might be
| Where it hurts | The key clue | Likely candidate |
|---|---|---|
| Thumb, index, middle fingers | Tingles at night, eased by shaking the hand | Carpal tunnel syndrome |
| Ring and little fingers | Worse with the elbow bent or leaned on | Cubital tunnel syndrome |
| Thumb side of the wrist | Sharp catch when lifting or wringing | De Quervain’s tenosynovitis |
| Base of the thumb | Deep ache when pinching; weakening grip | Thumb arthritis |
| Bony point of the inside/outside elbow | Precise, pressable; flares with gripping | Tennis or golfer’s elbow |
| Outer upper arm | Catches on reaching; sore lying on it | Rotator cuff pain |
| Strip down the arm | Changes with head position | Referred from the neck |
| Whole arm, heavy and tired | Worse overhead or carrying; eases when lowered | Thoracic outlet syndrome |
What helps with repetitive strain injury
Here is my evidence based advice. First, the equipment and desk ergonomics answer is weak: a Cochrane review of ergonomic interventions for office workers found workstation adjustments and sit-stand desks made no measurable difference to upper limb pain, with supplementary breaks showing more promise than furniture.[2] A new chair is rarely the fix people hoped for. Second, reviews of conservative care and of exercise for work-related arm, neck and shoulder complaints support active approaches while acknowledging the certainty of that evidence is limited.[3][4] Workplace-management reviews reach the same practical conclusion: for specific diagnoses, diagnosis-specific care is what works, which is precisely why the thorough examination you receive at your first visit matters.[3]
What tends to make a difference is: identifying which condition you actually have; changing the load rather than eliminating it, since complete rest will decondition the exact same tissues you need; varying tasks and taking short breaks and rebuilding tolerance gradually with targeted exercise. Where the problem is a mechanical joint or muscle condition, hands-on care alongside that loading plan is where I can help. Where it is something else, I will tell you and point you to the right place, specialist or practitioner.
When arm symptoms need a doctor first. See your GP promptly if numbness has become constant rather than intermittent, if the muscles of your hand are visibly wasting, if weakness is progressing or if symptoms affect both arms with clumsiness or balance changes. Seek same-day care if an arm becomes swollen and discoloured, or cold and pale. And call 999 if arm pain arrives with chest tightness, breathlessness or sweating.
Explore our shoulder and arm guides
Shoulder and arm pain: the main guide
Shoulder
- Rotator cuff pain, bursitis and biceps tendinopathy
- Frozen shoulder and adhesive capsulitis
- AC joint, collarbone and clavicular pain
- Arthritis in the shoulder
Elbow, wrist and hand
- Tennis elbow and golfer’s elbow
- Carpal tunnel, cubital tunnel and Guyon’s canal syndrome
- De Quervain’s tenosynovitis
- Thumb arthritis
- RSI and repetitive strain injury: what it usually turns out to be (you are here)
When arm pain starts in the neck or shoulder girdle
- Arm pain: is it your neck or your shoulder?
- Referred arm pain from the neck and brachial neuralgia
- Thoracic outlet syndrome
Related guides
Other areas of the body
- Neck pain, headaches and migraines
- Back pain: the main guide
- Rib, chest and pain between the shoulder blades
Bones and joints
More from us
Frequently asked questions about RSI
What is RSI?
RSI is a real problem but not a precise diagnosis. It is an umbrella term covering both specific conditions like carpal tunnel syndrome and non-specific arm pain that does not seem connected to one single structure.[1] That is why the useful next step is working out which pattern yours fits rather than settling for the label RSI.
Can a chiropractor help with repetitive strain injury?
My role is to identify what is causing your symptoms and where it is a mechanical joint or muscle problem, provide hands-on care alongside a graded loading plan. Where the answer is better served elsewhere, I’ll refer you on.
Will changing my equipment fix it?
Possibly less than you would hope. Cochrane evidence found workstation adjustments and sit-stand desks did not reduce upper limb pain, while regular short breaks showed more promise.[2] Work place ergonomics can help at the margins but changing how much and how often you load the arm usually matters more than what you load it with. The same principle applies whether you’re adjusting a chair, a saddle, a set of handlebars or a violin chin rest, kit changes help at the margins, but changing how often and how much you load the arm matters more
Should I stop the activity until it settles??
Complete rest for RSI rarely works and often backfires because tissue tolerance falls while you wait. Modifying the load, varying tasks and rebuilding capacity gradually is the better route which is what active approaches in the research describe.[3][4] The practical version of this is specific to your activity and your diagnosis.
How long does RSI take to settle??
It depends on which condition it is, the recurring theme here. A tendon problem caught early may settle in weeks; a long-standing one takes months. Nerve compression follows its own timeline. A diagnosis gives you a realistic answer instead of guessing. I have a guide to how long conditions roughly take to respond and then the associated costs are easier to also estimate.
But a short chat in person or by phone may prove more helpful to you when you are trying to decide what to do next about your arm pain.
If your arms have been aching, tingling or tiring, whether from work, a hobby, a sport or a small child, the most useful thing you can do is stop calling it RSI and find out what it actually is. Call me on 01202 937568 or book a free consultation at the clinic. If you are still unsure whether your symptoms start in the neck or the arm itself, my guide to arm pain from the neck or shoulder is the place to start.
Whatever is behind your repetitive strain injury, come and find out
Repetitive strain rarely settles for good on its own while the movements and habits behind it continue unchecked. If you are based in Bournemouth, Poole, Branksome Park or anywhere in Dorset, the sooner we assess what is happening, the sooner you can find out whether chiropractic care may help. Appointments are usually available within 48 hours, with free parking on site.
Or call the clinic directly on 01202 937568.
Written by Leslie Budzynski DC, GCC-registered chiropractor (GCC No. 00043) with 39 years of clinical experience. Principal chiropractor at Bournemouth Chiropractic.
This post is for information only and does not constitute medical advice. If you are experiencing severe or worsening symptoms, please consult your GP or call 111.
References on repetitive strain injury
[1] Stubbs PW, Pallesen H, Kristensen HK, et al. Exercise interventions for treating work-related complaints of the arm, neck or shoulder in adults. Cochrane Database Syst Rev. 2025;CD014643. https://doi.org/10.1002/14651858.CD014643
[2] Hoe VCW, Urquhart DM, Kelsall HL, Zamri EN, Sim MR. Ergonomic interventions for preventing work-related musculoskeletal disorders of the upper limb and neck among office workers. Cochrane Database Syst Rev. 2018;10(10):CD008570. https://doi.org/10.1002/14651858.CD008570.pub3
[3] Dick FD, Graveling RA, Munro W, Walker-Bone K. Workplace management of upper limb disorders: a systematic review. Occup Med (Lond). 2011;61(1):19-25. https://doi.org/10.1093/occmed/kqq174
[4] Verhagen AP, Bierma-Zeinstra SMA, Burdorf A, Stynes SM, de Vet HCW, Koes BW. Conservative interventions for treating work-related complaints of the arm, neck or shoulder in adults. Cochrane Database Syst Rev. 2013;(12):CD008742. https://doi.org/10.1002/14651858.CD008742.pub2
