Wrist tendonitis: causes, symptoms and treatment
An aching wrist that flares with gripping, typing, lifting a child or swinging a racquet is often an irritated tendon. Several tendons cross the wrist, and which side hurts points to which one is involved. Most settle with load changes and gradual strengthening.
What is wrist tendonitis?
It's irritation of a tendon, or the sheath it runs through, where it crosses the wrist. Clinicians often use 'tendinopathy' or 'tenosynovitis', since inflammation is only part of the picture. It usually develops from repeated or unaccustomed use.
What causes it?
A sudden increase in a repetitive task: a new job, DIY, gardening, long hours with a mouse or phone, lifting a baby, racquet sports, rowing, gym work with lots of gripping, or grip-heavy training in grappling. Awkward wrist positions and tight gripping add to the load.
What are the symptoms?
Aching or sharp pain over a tendon, worse with the movement that loads it and with gripping. There may be swelling, warmth, or a creaking sensation as the tendon moves. Mornings can be stiff.
What does pain on the thumb side mean?
Pain at the base of the thumb and along the thumb side of the wrist, worse with lifting, pinching and twisting, is usually De Quervain's tenosynovitis. A recent analysis found that a splint combined with a corticosteroid injection ranked best among conservative treatments, though the evidence was low certainty (Cuenca-Zaldívar et al., Journal of Hand Therapy, 2026).
See our post on De Quervain's.
What does pain on the little-finger side mean?
Pain on the back of the wrist towards the little finger, worse with twisting and gripping, often involves the extensor carpi ulnaris (ECU) tendon. A review describes this tendon as important for stabilising that side of the wrist, and commonly injured in sports such as tennis, golf and rugby league, where it can become irritated or slip out of its groove (Campbell et al., British Journal of Sports Medicine, 2013). Cartilage (TFCC) problems on the same side can feel similar.
What about pain on the back of the forearm above the wrist?
Pain and creaking a few centimetres above the wrist on the thumb side of the forearm, where two groups of tendons cross, is called intersection syndrome. It's seen in rowers, weightlifters and people doing repeated wrist movements.
What about the palm side?
Pain on the palm side of the wrist with gripping or bending the wrist can involve the flexor tendons. Tingling in the thumb, index and middle fingers suggests the nerve in the carpal tunnel is involved.
See our post on carpal tunnel vs cubital tunnel.
How is wrist tendonitis treated?
Reduce or modify the activity that triggered it for a few weeks. A wrist splint can rest the tendon, particularly at night or during aggravating tasks. Ice may ease pain. Then strengthen gradually. Persistent cases may be offered an injection through a GP.
Should I rest it completely?
Short-term relative rest helps, but prolonged immobilisation weakens the tendon and muscles. Keep the fingers and wrist moving gently, and reintroduce load progressively.
What exercises help?
Start with gentle wrist and finger movement, then static holds against light resistance, then wrist curls and reverse curls with a light weight, side-to-side wrist movement with a hammer, forearm rotation and grip strengthening. Progress over weeks.
How should I change my set-up or technique?
Keep the wrist close to neutral when typing and using a mouse, and take regular breaks. Use tools with larger handles. In the gym, straps can reduce grip demand temporarily, and neutral-grip handles are often more comfortable. Check racquet grip size and technique if it's sport-related.
See our post on wrist pain in the gym.
How long does it take to heal?
Recent-onset tendon irritation often settles in two to six weeks. Longer-standing cases commonly take two to three months of consistent loading.
Is it tendonitis or arthritis?
Tendon pain is felt along a line over the tendon and is provoked by using that muscle against resistance. Arthritis causes deeper joint pain and stiffness, often with reduced movement in all directions. Thumb-base arthritis is commonly confused with thumb-side tendon pain.
See our post on arthritis in the hands and thumb.
How can an osteopath help?
We identify which tendon is involved, check the elbow, shoulder and neck, treat hands-on to ease the forearm muscles, advise on splinting and activity, and build a strengthening program.
When should wrist pain be checked?
Book in for wrist pain that isn't improving after two to three weeks. See a doctor promptly for pain after a fall, a hot, red, swollen wrist, fever, or numbness and weakness in the hand.
See our post on sprained wrists and our elbow and wrist pain guide. Book an assessment at our Berwick clinic. A 60-minute initial consultation is $149, with no referral needed and HICAPS on-site.
Sources
Book an initial consultation at RISE Sports & Spinal in Berwick. Clear diagnosis, hands-on treatment, and a plan that actually gets you better.
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