De Quervain’s Tenosynovitis: Symptoms, Relief, and UK Treatment Options

De Quervain’s tenosynovitis is a musculoskeletal condition characterised by inflammation of the tendons that control the movement of the thumb. These tendons travel through a small tunnel (sheath) at the base of the thumb on the side of the wrist. When the sheath becomes thickened or the tendons become inflamed, they can no longer glide smoothly, leading to pain and restricted movement.

In the UK, this condition is relatively common and is often associated with repetitive activities. Historically, it was referred to as 'washerwoman’s thumb', but in modern times, it is frequently linked to mobile phone use (sometimes called 'texting thumb') or lifting young children ('mommy thumb'). It is most prevalent in adults between the ages of 30 and 50 and is significantly more common in women than men.

Recognising the signs

The primary symptom is pain or tenderness at the base of the thumb, near the radial styloid (the bony bump on the thumb side of the wrist). Patients often report:

• Pain that worsens when using the thumb or wrist for pinching or grasping.
• Swelling or a small fluid-filled cyst near the base of the thumb.
• A 'snapping' or 'catching' sensation when moving the thumb.
• Pain that may radiate up the forearm if left untreated.

Why does it happen?

The exact cause is often a combination of factors, but repetitive strain is the leading trigger. Common causes seen by GPs in the UK include:

• Repetitive motions: Gardening, playing racket sports, or typing.
• Postnatal changes: Lifting a baby repeatedly puts specific strain on these tendons, and hormonal changes during pregnancy can increase fluid retention, worsening inflammation.
• Inflammatory conditions: People with rheumatoid arthritis may be more susceptible to tenosynovitis.
• Direct injury: A blow to the wrist can cause scar tissue that restricts tendon movement.

Diagnosis is usually clinical, meaning a GP or physiotherapist can identify the condition through a physical examination without the need for X-rays or scans. The most common diagnostic tool used in UK practice is the Finkelstein test.

During this test, you are asked to bend your thumb across the palm of your hand and cover it with your fingers to make a fist. You then bend your wrist toward your little finger. If this causes sharp pain on the thumb side of your wrist, it is a strong indicator of De Quervain’s tenosynovitis. While you can perform this at home, a healthcare professional should confirm the diagnosis to rule out other issues like thumb base osteoarthritis.

According to NICE (National Institute for Health and Care Excellence) guidelines, management should begin with conservative measures. Many cases resolve without surgery if caught early.

• Rest and Activity Modification: The most crucial step is avoiding the activities that triggered the pain. This might mean changing how you hold your phone or using ergonomic tools at work.
• Splinting: A thumb-spica splint is often recommended. This immobilises the thumb and wrist, allowing the inflammation to subside. These are widely available in UK pharmacies or can be provided by an occupational therapist.
• Pain Relief: Over-the-counter medications such as paracetamol can help with pain. Non-steroidal anti-inflammatory drugs (NSAIDs) like ibuprofen, either taken orally or applied as a gel, are effective at reducing both pain and swelling. Always consult a pharmacist before starting new medications.
• Ice Packs: Applying a cold compress to the affected area for 10-15 minutes several times a day can help reduce acute inflammation.

If you are experiencing persistent wrist pain that does not improve with rest and over-the-counter treatment after two weeks, it is time to seek professional advice. Speaking to a GP online is a convenient way to get an initial assessment without leaving your home.

A GP during an online consultation can:

• Review your symptoms and medical history.
• Guide you through a self-administered Finkelstein test via video.
• Provide a private prescription for stronger anti-inflammatory medication if appropriate.
• Issue a sick note (Fit Note) if your job involves repetitive manual tasks that are hindering your recovery.
• Advise on the necessity of a referral for physiotherapy or a steroid injection.

Early intervention is key to preventing the condition from becoming chronic, which can lead to permanent thickening of the tendon sheath.

If conservative measures fail, your GP may suggest more intensive options. Corticosteroid injections are a highly effective second-line treatment. A small amount of steroid is injected into the tendon sheath to rapidly reduce inflammation. In the UK, many patients find significant relief after just one or two injections.

In rare, recalcitrant cases where pain persists for months despite all other treatments, De Quervain’s release surgery may be considered. This is usually a day-case procedure performed under local anaesthetic. The surgeon makes a small incision to open the sheath, giving the tendons more room to move. Recovery involves a short period of bandaging followed by gentle physiotherapy to restore full range of motion.