De Quervain's Tenosynovitis: Thumb-Side Wrist Pain That Bites When You Lift

There is a specific wrist pain that announces itself the first time you lift a full kettle with one hand. It sits on the thumb side of the wrist, an inch or so above the joint, and it is sharp rather than achy. Lifting a toddler under the arms does it. So does wringing out a cloth, opening a jar, or holding a phone in one hand for too long.

That pattern usually points to De Quervain's tenosynovitis: irritation of two tendons where they pass through a tight tunnel at the base of the thumb.

The anatomy, in one paragraph

Two tendons run from the forearm down the thumb side of the wrist and out to the thumb. They are the abductor pollicis longus and the extensor pollicis brevis, and together they lift the thumb away from the hand. Near the wrist they pass through a narrow fibrous tunnel, called the first extensor compartment, which holds them close to the bone so they pull efficiently.

When the tunnel and the tendon sheath inside it become thickened and irritated, the tendons no longer glide freely. Every thumb movement now drags through a passage that has narrowed, and that is the sharp pain people describe.

One anatomical detail matters more than it sounds like it should. In some people a septum divides that tunnel into two separate compartments, one for each tendon. The 2023 systematic review in the Journal of Medical Radiation Sciences by He and colleagues found a confirmed intracompartmental septum in 35.8% of patients. That number resurfaces later, because it explains a meaningful share of the treatments that do not work.

Who gets it

In a large community-based study in the United Kingdom, the prevalence was 0.5% in men and 1.3% in women. The 2023 review's own pooled population of 382 patients was 78.8% female, with a mean age of 47.9 years and a range of 16 to 82. The dominant hand was affected in 60.4% of cases.

The classic trigger is a sustained change in how much the thumb is being used, particularly with repeated lifting where the thumb is up and the wrist tips toward the little finger. New parents lifting an infant under the arms many times a day are the textbook example, and the timing is commonly a few weeks to a few months after birth. Trades and jobs involving repetitive gripping, wringing, or tool use produce it too, as does a sudden increase in racquet sport volume or any new hobby that loads the thumb hard.

It sits alongside the other common overuse presentations at the wrist and hand. The nerve-based pattern is described in carpal tunnel syndrome: what conservative care actually involves, and the joint-based one in thumb base osteoarthritis. Telling those three apart is most of the value of a first assessment, because the treatment for each is different.

What separates it from thumb arthritis

This is the confusion worth clearing up, because the two are often mistaken for each other and the plans diverge.

De Quervain's pain sits above the wrist joint, along the tendons, around where a watch strap's upper edge would sit. It is sharpest with movements that stretch or load those tendons: lifting with the thumb up, tipping the wrist toward the little finger, or making a fist with the thumb tucked inside. Swelling along the tendons is sometimes visible, and some people feel a catching or creaking as the thumb moves.

Thumb base osteoarthritis sits lower, right at the joint where the thumb meets the wrist, in the web space area. It is more often an ache that builds through the day, worst with pinching and twisting tasks such as turning a key or opening a jar lid, and it may come with a visible squaring of that joint over time.

A physiotherapist distinguishes them by exactly where the tenderness sits, which movements reproduce the pain, and a short set of clinical tests. Those two conditions can coexist in the same hand, particularly in people over fifty, which is another reason a careful examination beats guessing from a symptom list.

What the treatment evidence actually shows

The evidence here is more lopsided than most people expect, and it is worth stating with the real figures attached.

The 2023 review pooled 10 studies covering 382 patients and 396 wrists treated with ultrasound-guided corticosteroid injection. Complete resolution of symptoms occurred in 73.9% of wrists (280), partial resolution in 18.2% (69), and treatment failure in 7.9% (30).

The same review reports the comparison that people usually want: 83% of wrists that received injection alone were cured, 61% of wrists that received injection with splint immobilisation were cured, and 14% of those that received splinting alone were cured. Those figures come from the earlier literature the review summarises rather than from a head-to-head trial it ran, which is an important distinction.

A 2009 randomised placebo-controlled trial in BMC Musculoskeletal Disorders by Peters-Veluthamaningal and colleagues tested corticosteroid injection against saline in general practice. At one week, 78% of the steroid group responded compared with 25% of the placebo group, with a number needed to treat of 2. The authors are candid about the limitation: they enrolled 21 patients against a target of 50, so the trial is small and the confidence intervals around those percentages are wide.

The septum finding from the 2023 review explains part of the failure rate. When a septum was present and the injection went into both compartments, the failure rate was 16.1%. When only one compartment was injected, failure ran at 38%. That is the practical case for ultrasound guidance rather than injecting by landmark alone, and the review found the difference directly: complete resolution in 95.7% of wrists injected under ultrasound guidance against 78.2% with the standard technique.

The review's own stated limitations belong here too. The authors flag significant heterogeneity in how outcomes were reported, different corticosteroids at variable concentrations and volumes, and follow-up that was not uniform across studies.

Where physiotherapy fits

The injection figures above do not mean the therapy side is pointless, and reading them that way misses what each approach is doing.

A corticosteroid injection reduces inflammation inside the tunnel. It is a physician-delivered treatment and it is genuinely effective in this condition. What it does not do is change the load that irritated the tendons in the first place, which is why recurrence happens when nothing else changes.

Physiotherapy and hand therapy work on that side. A plan typically includes a thumb spica orthosis that holds the wrist and the thumb's base joint still while leaving the tip free, worn on a schedule your therapist sets rather than continuously, because prolonged immobilisation costs strength and motion. Alongside it, the specific aggravating movements get modified: how you lift an infant, how you hold a phone, how you carry bags, how tools are gripped. Tendon gliding and graded loading are introduced as symptoms allow, so the tendons regain tolerance instead of simply being rested. Then strength is rebuilt through the thumb, the grip, and the forearm.

For many people the sequence that works is therapy first, with an injection added if symptoms persist or if pain is too high to start loading. Which order suits you depends on how long it has been going on, how severe it is, and what you need your hand to do. That is a conversation for your assessment rather than a rule.

Pregnancy and the postpartum period are a specific case. Symptoms that start with infant lifting often settle as the lifting technique changes and the child grows, and the choice about injection during breastfeeding is one to have with your physician.

What to expect at a first visit

A first physiotherapy assessment for thumb-side wrist pain is mostly examination. Your therapist will locate the tenderness precisely, test the movements that provoke it, check the thumb base joint and the wrist separately, and screen the neck and forearm, since referred pain and nerve irritation can produce hand symptoms that have nothing to do with the tendons. They will ask what changed in the weeks before it started, because the answer usually names the cause.

Imaging is not routine. The diagnosis is clinical, and a scan is useful mainly when the picture is unclear or a fracture is suspected after a fall. Ultrasound has a role in guiding an injection, as the figures above show, rather than in making the initial diagnosis.

Physiotherapy is a direct-access profession in British Columbia, regulated by the College of Health and Care Professionals of BC, so you can book an assessment without a physician's referral. Some extended-health plans require a referral for reimbursement, so check with your insurer first. If the pain came from a work task and you have an open claim, the WorkSafeBC pathway applies, and if it started in a motor vehicle crash, the ICBC one does.

Surgery to release the tunnel exists and works well, but it sits at the end of the line, after conservative care and injection have been tried and symptoms have persisted. Most people never get there.

This article is general information, not personal medical advice. A regulated practitioner can confirm whether the patterns described apply to you.

Frequently asked questions

What is De Quervain's tenosynovitis?

It is irritation and thickening of the sheath around two tendons, the abductor pollicis longus and the extensor pollicis brevis, where they pass through a narrow tunnel on the thumb side of the wrist. When the tunnel and sheath thicken, the tendons no longer glide freely, which produces sharp pain with thumb and wrist movement. It is sometimes called "mother's thumb" or "gamer's thumb" after two of its common triggers.

What does De Quervain's feel like?

Sharp pain on the thumb side of the wrist, usually an inch or so above the joint, triggered by lifting with the thumb up, wringing a cloth, opening jars, or picking up a child under the arms. Some people see swelling along the tendons or feel a catching or creaking sensation as the thumb moves. Tipping the wrist toward the little finger while the thumb is tucked into a fist commonly reproduces it strongly.

How is it different from thumb arthritis?

Location and character. De Quervain's pain sits above the wrist joint along the tendons and is sharpest with movements that load or stretch them. Thumb base osteoarthritis sits lower, at the joint where the thumb meets the wrist, and is more often an ache that builds through the day, worst with pinching and twisting such as turning a key. The two can occur together, particularly after age fifty, which is why an examination is worth more than matching symptoms to a list.

Who gets it?

A large community-based UK study found a prevalence of 0.5% in men and 1.3% in women. In the 2023 review's pooled population of 382 patients, 78.8% were female with a mean age of 47.9 years and the dominant hand affected in 60.4% of cases. New parents, people in repetitive gripping trades, and anyone who has sharply increased thumb-loaded activity are the common presentations.

Does a splint fix it?

A splint alone has the weakest record of the options studied. The 2023 review in the Journal of Medical Radiation Sciences reports 14% of wrists cured with splinting alone, against 83% with corticosteroid injection alone and 61% with injection plus splinting. That does not make a splint useless: it protects the tendons while other changes take effect and it is a normal part of a hand therapy plan. It is unlikely to resolve the condition on its own.

How effective is a corticosteroid injection?

The 2023 review pooled 10 studies covering 396 wrists treated under ultrasound guidance and found complete resolution in 73.9%, partial resolution in 18.2%, and failure in 7.9%. A 2009 randomised placebo-controlled trial in BMC Musculoskeletal Disorders found 78% of the steroid group responded at one week against 25% of the placebo group, with a number needed to treat of 2, though that trial enrolled only 21 of a planned 50 patients.

Why do some injections not work?

Anatomy is a large part of it. In about 35.8% of patients a septum divides the tunnel into two separate compartments. The 2023 review found that when a septum was present and both compartments were injected, the failure rate was 16.1%, while injecting only one compartment produced failure in 38% of cases. The same review found complete resolution in 95.7% of wrists injected under ultrasound guidance compared with 78.2% using the landmark technique.

Can physiotherapy help, or do I need an injection?

They do different jobs. An injection reduces inflammation inside the tunnel. Physiotherapy and hand therapy change the load that caused the problem: orthosis use on a set schedule, modification of the specific aggravating movements, graded tendon loading, and rebuilding grip and thumb strength. Many people start with therapy and add an injection if symptoms persist or pain is too high to begin loading. The right order depends on duration, severity, and what your hand needs to do.

How long does it take to settle?

That depends on how long it has been present and whether the provoking load can be changed. Cases caught early, where the triggering activity can be modified, often settle over several weeks. Longstanding cases take longer and more commonly need an injection alongside therapy. Your therapist should be able to give you a specific expectation after examining you rather than a general figure.

Do I need surgery?

Rarely, and not as a first step. Surgical release of the tunnel exists and works well, but it sits at the end of the pathway after conservative care and injection have been tried and symptoms have persisted. The evidence above shows that most wrists resolve without it.

Do I need a referral to see a physiotherapist in BC?

No. Physiotherapy is a direct-access profession in British Columbia, regulated by the College of Health and Care Professionals of BC, so you can book without a physician's referral. Some extended-health plans require one for reimbursement, so confirm with your insurer before your first visit. If the pain arose from a work task with an open claim, the WorkSafeBC pathway applies; if it began in a motor vehicle crash, the ICBC pathway does.

Sources

• He et al., "Unblinding de Quervain: A systematic review of ultrasound-guided injection of corticosteroids for treatment of stenosing tenosynovitis of the 1st extensor compartment," Journal of Medical Radiation Sciences, 2023
• Peters-Veluthamaningal et al., "Randomised controlled trial of local corticosteroid injections for de Quervain's tenosynovitis in general practice," BMC Musculoskeletal Disorders, 2009
• College of Health and Care Professionals of BC, physiotherapist scope of practice