What is tendosynovitis?
But when the tendon and its sheath are overloaded by a great deal of monotonous, repetitive movement, their surfaces become abraded and inflammation develops – this is tendosynovitis. Pain, swelling and tenderness during movement are the typical signs. In more severe cases, you may even feel or hear an almost “rubbing” sensation when you move. And the most frustrating part is that it can stubbornly persist for weeks or months. In this article, I’ll show you why it becomes persistent and what you can do about it at home.
Key point
Tendosynovitis becomes persistent because the strain that triggered it – typing, mouse use or monotonous work – does not stop. The inflamed tendon therefore hardly ever gets a chance to settle. The basis of treatment is not a miracle method, but reducing the load: rest and immobilisation, supplemented with cooling, anti-inflammatory cream and home physiotherapy. If this does not bring improvement within a few weeks, medical treatment is needed.
How does it develop – and why does it refuse to go away?
Repeated movement causes the tendon and the inner surface of the sheath to rub against each other. Microscopic injuries develop and inflammation starts. In the most common form, known as fibrinous tendosynovitis, protein deposits (fibrin) settle on the inflamed surfaces. The previously smooth, lubricated surface becomes rough. From then on, the tendon no longer glides but rubs inside its sheath – you feel this as pain, and sometimes it can also be heard as a rubbing sound.
Here is the trap: because the surfaces are rough, every movement causes more friction; the friction triggers more inflammation, and the inflammation leaves the surface even rougher. If you continue typing, using the mouse or working in the meantime – as most people do because it is “only a little wrist pain” – the circle never breaks. That is why tendosynovitis can last for weeks or months, and why it returns so easily.
The circle can be broken at one point only: when the tendon finally gets some rest. With the load reduced, the inflammation can subside, the abraded surfaces can gradually recover, and the tendon can regain its smooth gliding movement. Everything else – cooling, creams and home physiotherapy – supports and may speed up this process, but none of them replaces rest. That is why every treatment plan starts with immobilisation.
Forms and types – which one is yours?
| Form | Typical symptom | What to do |
|---|---|---|
| Fibrinous (simple) tendosynovitis | Pain on exertion, swelling and tenderness at the wrist, back of the hand or ankle; sometimes a rubbing sensation during movement | Can be treated at home: reduce the load + the methods below |
| De Quervain’s tendosynovitis | Pain on the thumb side of the wrist when gripping, twisting or moving the thumb – particularly common in mothers lifting babies | Can be treated at home, but is more persistent than average; a splint that also immobilises the thumb is needed |
| Trigger finger (stenosing tenosynovitis) | The finger catches when bent, then releases with a snap; it is worst in the morning | In the early stage, rest and a splint; if it catches regularly, medical treatment is needed |
| Purulent (infectious) tendosynovitis | Rapidly worsening, throbbing pain, marked swelling and redness, often with fever – typically after a puncture wound (thorn, nail or needle) | Not suitable for home treatment: seek medical help immediately because the infection can spread |
What to do at home – start here
1. Reduce the load and immobilise the area. This is the basis of treatment. Without it, the effect of the other steps is lost. Stop the movement that triggered the problem, or at least reduce it drastically, and immobilise the wrist with a splint or a wrist support with stays – for De Quervain’s tendosynovitis, use one that also supports the thumb. Keep the support on at night as well.
2. Cooling. During the acute, swollen stage, cool the area several times a day for 10–15 minutes at a time – using an ice pack wrapped in a towel, never placing it directly on the skin. I have written a detailed guide to the rules of cold therapy here.
3. Anti-inflammatory creams. Ibuprofen-, piroxicam- or salicylate-containing creams and gels available from pharmacies without a prescription may ease pain and inflammation. Apply a thin layer several times a day. Take oral anti-inflammatory medicines only on the advice of a doctor or pharmacist.
4. Ergonomics – to prevent it returning. If computer work caused the problem, changing your workstation is the only way to prevent its return: use a mouse mat with wrist support, a vertical mouse, a low-positioned keyboard, and take a few minutes’ break every hour to move your wrist and hand. The same applies to tool use and monotonous manual work: if possible, vary your grip and movements.
Home physiotherapy – what may help speed up the process?
Alongside reducing the load, several types of home physiotherapy may support the settling of inflammation and ease pain. The order matters: you do not need to use all of them, and certainly do not need to buy them all at once. The following three are the most common, well-established starting points for this problem.
Personal Laser L400 – soft laser
Soft laser is particularly suitable for small joints and tendons that run close to the surface – and the wrist and hand are exactly such areas. Research suggests that, when used at an appropriate dose for tendon inflammation, it may measurably ease pain and support tissue recovery.2 Use it once a day, holding it directly over the painful point. You can read more about the method in my soft laser guide.
SonicRelief – therapeutic ultrasound
Ultrasound works through the deeper tissues like a micromassage. It may improve local circulation and soften surfaces that have become stuck and rough, making it a useful addition for persistent symptoms that have lasted for weeks. Use it with gel as a medium, making slow circular movements for a few minutes each day. You can find the details in the therapeutic ultrasound guide.
Dolito – TENS pain relief
TENS does not treat the inflammation. It quietens the pain signal. It can be useful when pain disturbs your daily life or sleep and you are looking for medicine-free relief. I explain how it works in the article about TENS treatment. You can find further devices in the TENS devices category.
As an additional option, pulsed magnetotherapy and microcurrent treatment may also be considered. These are mainly worth considering if you already have such a device for another problem. One important point applies to all of them: the device alone will not solve anything. Daily, regular use combined with reducing the load is what makes the difference. You can find products selected for tendosynovitis in one place on the tendosynovitis category page.
My advice
Being symptom-free does not yet mean that you have recovered. When the pain goes away, the tendon is still vulnerable for weeks. If you return to full load the next day, there is a good chance you will have to start again within a week. Return gradually: during the first two weeks, work in shorter periods, take frequent breaks, and after exertion consider an extra cooling session or laser treatment.
Before starting home treatment
Home physiotherapy devices are safe for most users, but they must not be used in some situations:
- Purulent, infectious tendosynovitis – no home device treatment may be used; seek medical help immediately
- Pacemaker or another implanted electrical device – TENS and microcurrent treatment must not be used
- Pregnancy – electrotherapy and ultrasound treatment only with medical approval
- Cancer in the area to be treated – local physiotherapy treatments are prohibited
- Open wound or skin infection at the treatment site – allow the wound to heal first, then start treatment
When should you seek immediate medical help?
If the pain is rapidly worsening and throbbing, the area is red, hot and very swollen, you have a fever, or the symptoms appeared after a puncture injury (thorn, nail, needle or nail-bed infection), this may indicate purulent tendosynovitis, which can spread to deeper tissues without treatment. A medical examination is also needed if your finger catches regularly, you notice numbness, or home treatment has not brought meaningful improvement within 2–3 weeks.
Frequently asked questions
With consistent reduction of the load, milder cases improve considerably within 2–3 weeks. More persistent forms – especially De Quervain’s tendosynovitis – may take 6–8 weeks or longer. The most common mistake is returning to full load as soon as the first improvement appears, which restarts the process.
As far as possible, no – or only with a support, frequent breaks and ergonomic equipment. Tendosynovitis is persistent precisely because the movement that caused it continues. If you cannot stop working, a splint, a vertical mouse and an hourly break are the minimum.
Cool it during the acute, swollen and tender stage. Use warmth only during the resolving, chronic stage, when there is no marked swelling. At that point, warmth may help loosen tissues that have become stuck. If you are unsure, cooling is the safer choice.
If consistent home treatment brings no improvement after several weeks, a doctor may give a steroid injection next to the tendon sheath. For De Quervain’s tendosynovitis and trigger finger, this is a well-established next step. Surgery is used only in recurring cases that do not respond to treatment, when the narrowed tendon sheath is surgically released.
Because the cause – monotonous strain – has not changed. When someone continues working in the same way after the symptoms disappear, they load the same tendon in the same way. A lasting solution always has two elements: settling the inflammation NOW and changing the ergonomics FOR THE LONG TERM.
Not quite. Tendonitis is inflammation of the tendon itself. It can develop anywhere there is a tendon, for example at the elbow or heel. Tendosynovitis is inflammation of the protective sheath around the tendon, so it occurs only where the tendon has a sheath, mainly at the wrist, hand and around the ankle. The treatment principles are similar, but immobilisation is even more important for tendosynovitis.
What does the research say?
“What should I do if the splint and rest are not enough?”
According to a scientific review of the most common tendon problems of the hand, the next step is a steroid injection next to the tendon sheath. For De Quervain’s tendosynovitis, its effect is supported by moderate-quality evidence, and wearing a thumb-supporting splint after the injection appears to improve the result further. For trigger finger, an injection is also a well-established first medical step.1
“Can laser treatment really help an inflamed tendon?”
A comprehensive analysis of soft laser treatment for tendon disorders shows a mixed picture, but with an important pattern: in studies that used a dose consistent with international recommendations, laser treatment consistently eased pain and improved function. The lesson is that the device and treatment duration matter. It is worth following the dosage instructions.2
“What if my hand pain has already been present for months?”
According to a comprehensive review of chronic hand pain, the first-line approach is still gentle conservative treatment. Injection procedures are considered only if this fails, and they are more precise and effective when guided by ultrasound. Surgery is the last option, reserved for cases that do not respond to treatment.3 In other words, with consistent home treatment you are not “wasting time”. You are following the first step recommended by professional guidelines.
Summary – Quick overview
Sources
- Huisstede BM, Gladdines S, Randsdorp MS, Koes BW (2018). Effectiveness of Conservative, Surgical, and Postsurgical Interventions for Trigger Finger, Dupuytren Disease, and De Quervain Disease: A Systematic Review. Archives of Physical Medicine and Rehabilitation, 99(8), 1635–1649. DOI: 10.1016/j.apmr.2017.07.014
- Tumilty S, Munn J, McDonough S, Hurley DA, Basford JR, Baxter GD (2010). Low level laser treatment of tendinopathy: a systematic review with meta-analysis. Photomedicine and Laser Surgery, 28(1), 3–16. DOI: 10.1089/pho.2008.2470
- Urits I, Smoots D, Anantuni L, et al. (2020). Injection Techniques for Common Chronic Pain Conditions of the Hand: A Comprehensive Review. Pain and Therapy, 9(1), 129–142. DOI: 10.1007/s40122-020-00158-4
