Jars, keys, zippers, tools, a coffee mug at 6am — arthritic hands lose the small tasks first. Most of that is recoverable with load, protection, and better leverage.
Medically reviewed by Dr. Carson Bailey, PT, DPT · August 2026
Hand and thumb arthritis is osteoarthritis of the small finger joints and of the saddle joint at the base of the thumb, and it is the most common osteoarthritis there is: roughly 22% of adults over 50 have symptomatic hand osteoarthritis, and the lifetime risk of developing it is 39.8% — 47.2% for women against 24.6% for men.[1][2] No treatment regrows cartilage, but hand exercise, a thumb base orthosis, and adapted tools each have pooled trial evidence behind them, and people treated non-surgically for thumb base arthritis have held their twelve-month gains out to nearly seven years.[3][5] RISE Physical Therapy treats hand and thumb osteoarthritis one-on-one in 45-minute sessions in Boise and Nampa, Idaho, and Idaho's direct-access law lets you start without a physician referral.
Hand and thumb arthritis is osteoarthritis affecting the small joints of the fingers and, very often, the trapeziometacarpal joint at the base of the thumb — the joint clinicians call the first carpometacarpal, or CMC, joint. The cartilage in those joints thins, the bone at the margins builds outward into the bony knobs people notice on their knuckles, and the ligaments and capsule around each joint change too. Because the joints involved are small and used constantly, the disease announces itself through tasks rather than through rest: the jar lid, the key, the seatbelt buckle, the second hour of pruning.
It is the most common form of osteoarthritis. About 22% of adults over 50 have symptomatic hand osteoarthritis — 16% of men and 28% of women.[1] Looked at across a lifetime, the numbers are larger still: in the Johnston County study the lifetime risk of symptomatic hand osteoarthritis was 39.8% overall, 47.2% in women and 24.6% in men, and 47.1% among people with obesity against 36.1% without.[2]
The thumb deserves separate billing. Its base is a saddle-shaped joint designed for an unusual amount of motion, and every pinch drives multiplied force through it. That combination is why thumb base arthritis is often the loudest joint in an arthritic hand, why it is the one an orthosis can help most directly, and why a hand can look mildly arthritic on an X-ray while the thumb quietly dictates what the person can and cannot do.
Hand and thumb arthritis usually feels like an ache that is triggered by use and settles with rest, together with brief morning stiffness and a slow loss of grip and pinch strength. It rarely arrives as one dramatic event. What people describe in clinic:
Two contrasts are worth holding onto. Numbness and tingling — particularly at night, in the thumb, index and middle fingers — is a nerve pattern rather than an arthritis pattern, and belongs with our carpal tunnel page; the two conditions also coexist often enough that we screen for both. And soft, symmetrical swelling of the knuckles where the fingers meet the palm, with stiffness lasting well over an hour, is not the osteoarthritis pattern at all.
Hand and thumb osteoarthritis comes from a mix of age, sex, genetics, joint shape and accumulated load rather than from any single injury. Age is the dominant factor and female sex the second: the female predominance is strong enough that specialist hand clinics see women outnumbering men several times over.[1] Obesity raises risk measurably, which is a useful reminder that hand osteoarthritis is not purely a wear-and-tear phenomenon — the hands do not carry body weight, so metabolic factors are clearly part of the story.[2]
On top of that sit the local factors: a previously fractured or dislocated finger, a hypermobile thumb base that has been shearing for decades, and years of high-repetition pinch work — trades, hairdressing, dentistry, upholstery, playing an instrument. In the Treasure Valley we see a fair amount of the seasonal version, where a hand that was fine all winter meets a full March of pruning, fencing and potting in three weekends.
What we push back on is the idea that using your hands caused this and therefore resting them is the fix. Hands that stop working lose strength quickly, and grip strength is one of the things that most directly determines whether an arthritic hand can still do its job. The goal is to change how load is delivered — better leverage, better tools, sensible pacing — not to stop delivering load.
Hand therapy for thumb and hand osteoarthritis produces real but modest benefits, and the size of each one is worth knowing before you commit your time. The most recent systematic review informing European guidance pooled the available trials and reported low-certainty evidence of a small long-term effect of hand exercise on pain (standardised mean difference −0.34, 95% CI −0.58 to −0.09), low-certainty evidence of a moderate long-term effect of thumb base orthoses on pain (SMD −0.77, 95% CI −1.20 to −0.34), and moderate-certainty evidence — the strongest certainty rating in the whole review — that assistive devices produce a moderate long-term improvement in hand function (SMD −0.55, 95% CI −0.94 to −0.16).[3]
That last finding is the one most often skipped over, and it deserves more attention than it gets: the best-supported intervention in hand osteoarthritis is changing the tools. A jar opener, fatter-handled cutlery, a key turner, an electric can opener and a lighter watering wand are not a consolation prize for people who cannot exercise. They are the intervention with the most confident evidence base, and they work by removing the peak pinch forces that provoke the joint in the first place.
Pooled trials found a small long-term pain effect for hand exercise and a moderate one for thumb orthoses, both on low-certainty evidence — while assistive devices carried moderate-certainty evidence of a moderate gain in hand function.
View review →Across 17 UK hospital departments, adding a thumb splint to a therapist-supported self-management program produced no additional benefit over the self-management program alone — every group improved.
View study →The second card is the uncomfortable one, and it is why we do not hand out splints reflexively. The OTTER II trial randomised people with symptomatic thumb base osteoarthritis to supported self-management alone, or the same program plus one of two splint types, and found the splints added nothing measurable to the outcome.[4] Read alongside the pooled orthosis data, the fair conclusion is not "splints don't work" but "good therapist-led self-management is doing much of the work, and a splint is a tool inside that plan rather than a substitute for it."
Guidelines land in the same place. The 2019 American College of Rheumatology and Arthritis Foundation guideline strongly recommends exercise and self-management programs for hand osteoarthritis, and gives first-CMC — thumb base — orthoses its strongest recommendation; heat and paraffin, orthoses for other hand joints, topical and oral NSAIDs, and intra-articular steroid injections are recommended conditionally, while glucosamine and biologic agents are recommended against.[6]
Most hands with arthritis never reach an operating room, and the best long-term data on non-surgical care are reassuring. A multicentre cohort followed 217 people treated for thumb base osteoarthritis with hand therapy — exercise and education sessions plus an orthosis — and found their pain scores improved by 15.2 points on the Michigan Hand Outcomes Questionnaire over twelve months and were no worse at a median follow-up of 6.6 years. Twenty-two percent went on to surgery, and 70% of those did so within the first year.[5]
Two honest caveats about that reassurance. It is a cohort, not a randomised comparison, so improvement cannot be credited to therapy alone — and remarkably, no trial has ever compared surgery for thumb base arthritis against non-surgical treatment or against no surgery at all; the surgical literature compares operations to other operations.[3] That evidence gap cuts both ways. It means nobody can promise you that an operation will beat a good conservative plan, and it means nobody should tell you that surgery is a failure of rehab. When pain persists at rest and at night, when pinch has collapsed despite months of honest work, a hand surgery opinion is a reasonable next step, and we will help you get one.
Most hand and thumb arthritis can start with a physical therapy evaluation, but a few presentations need medical assessment first. Contact a physician promptly, or go to urgent care, if any of these describe you:
None of these are common. All of them are worth ruling out on day one, which is part of what an evaluation is for.
Treating hand and thumb arthritis at RISE starts with finding out which joint is actually costing you function, because the fingers and the thumb base fail in different ways and respond to different fixes. Every session is a full 45 minutes, one-on-one with the same Doctor of Physical Therapy — enough time to test grip and pinch properly, fit and adjust an orthosis, and rehearse the specific tasks that have become difficult rather than handing you a sheet of exercises.
Grip and pinch strength, joint-by-joint examination, thumb base provocation, and a red-flag screen that separates osteoarthritis from inflammatory arthritis and nerve compression.
An orthosis and tool changes that cut the peak forces immediately, alongside graded range-of-motion and pinch work dosed so soreness settles within 24 hours.
A home program short enough that you will actually do it, re-measured grip and pinch, and an honest read on whether conservative care is still delivering or a hand surgery opinion has arrived.
CONDITION
CONDITION
TECHNIQUEOne-on-one hand and thumb arthritis evaluation with a Doctor of Physical Therapy in Boise and Nampa — no referral needed in Idaho.
Carson is a co-founder of RISE Physical Therapy and treats orthopedic, sports, and tendon conditions with a hands-on, movement-first approach. He earned his Doctorate of Physical Therapy from Pacific University in Oregon. Meet the full team →