Understanding Trigger Finger: Causes, Symptoms & Treatment
Trigger finger, medically known as stenosing tenosynovitis, is a common yet often misunderstood condition that affects the tendons in the hand. It can cause discomfort, stiffness, and a characteristic “clicking” or “locking” sensation when bending or straightening the affected finger or thumb.
What Is Trigger Finger?
Trigger finger occurs when the tendon sheath—the tunnel that allows tendons to glide smoothly—becomes inflamed or thickened. This restricts the tendon’s movement, causing it to catch or lock. In more severe cases, the finger may become stuck in a bent position and suddenly snap straight, much like pulling and releasing a trigger.
What Causes It?
While the exact cause isn’t always clear, several risk factors are associated with trigger finger:
- Repetitive hand use or gripping activities
- Diabetes and rheumatoid arthritis
- Hypothyroidism
- Gender and age: More common in women over 40
- Occupational strain: Manual labourers, musicians, and those using vibrating tools are at higher risk
Common Symptoms of Trigger Finger
- Pain or tenderness at the base of the affected finger or thumb
- A clicking or popping sensation during movement
- Stiffness, especially in the morning
- Finger locking in a bent position, which may suddenly release
- A palpable nodule at the base of the finger
Diagnosis
Diagnosis is typically clinical, based on a physical examination and patient history. In most cases, no imaging is required unless other conditions are suspected.
Trigger Finger Treatment Options
Treatment depends on the severity of the condition:
- Non-Surgical Management
- Rest and activity modification
- Splinting to keep the finger extended
- Anti-inflammatory medications
- Steroid injections: Often effective in reducing inflammation and restoring movement
Surgical Treatment
If conservative measures fail, trigger finger release surgery may be recommended. This is a minor procedure performed under local anaesthetic, where the surgeon releases the tight portion of the tendon sheath to restore smooth tendon movement.
Recovery is typically quick, with most patients regaining full function within a few weeks.
Typical Surgical Recovery Timeline
Day of Surgery
- The procedure is usually done as a day case under local anaesthetic.
- You can typically go home on the same day.
First Week
- Mild pain, swelling, and stiffness are common.
- You may need to keep the hand elevated and bandaged.
- Light use of the hand is encouraged, but avoid heavy lifting.
2–3 Weeks
- Stitches (if non-dissolvable) are usually removed around 10–14 days post-op.
- Most patients can return to desk-based work within 1–2 weeks.
4–6 Weeks
- Full range of motion typically returns.
- Depending on your surgeon’s advice, you can resume manual work or sports.
- 6–12 Weeks
- Complete healing of the tendon sheath and scar tissue.
- Any residual stiffness or swelling usually resolves.
Factors That May Affect Recovery
Number of fingers operated on
- Presence of underlying conditions (e.g., diabetes, arthritis)
- Age and general health
- Adherence to post-op physiotherapy (if recommended)
When to See a Specialist for Trigger Finger
Early intervention can prevent worsening symptoms and avoid long-term complications if you’re experiencing persistent finger pain, locking, or stiffness. As a private hand surgeon, Manchester Hand Surgeons offer rapid access to diagnosis and treatment, including same-week consultations and tailored care plans.
