Overview

De Quervain tenosynovitis is a painful condition affecting the tendons on the thumb side of the wrist. Tendons are the flexible bands of tissue that connect muscles to bones. When the tendons that run through the small tunnel at the base of the thumb become irritated or inflamed, every movement of the thumb and wrist — pinching, grasping or turning the wrist — can cause significant discomfort.

The condition can affect anyone but occurs most commonly in people between the ages of 30 and 50. Women are more likely to develop it than men. New mothers are particularly susceptible, due to repetitive lifting of an infant, though it also frequently affects people whose work or hobbies involve repetitive hand and wrist motions.

Left untreated, de Quervain tenosynovitis can limit thumb and wrist function and significantly affect daily activities such as writing, typing, carrying grocery bags and opening jars. With proper diagnosis and treatment, most patients experience full recovery.

Signs and Symptoms

The most common symptoms of de Quervain tenosynovitis include:

• Pain and swelling near the base of the thumb
• Tenderness directly over the thumb side of the wrist
• Difficulty pinching or grasping objects
• The feeling of something catching or stopping in the thumb when moving it
• Swelling and, sometimes, a fluid-filled cyst in the same region
• Pain that radiates into the thumb or up the forearm
• Increased pain with wrist or thumb movement

When to See a Doctor

Schedule an appointment if pain or swelling at the base of your thumb interferes with daily activities, does not improve with rest and over-the-counter pain relievers after a week or two, or is getting progressively worse. Seek prompt care if you notice significant swelling, bruising or an inability to move the thumb.

Causes

De Quervain tenosynovitis occurs when the tendons that connect the thumb muscles to the wrist — the abductor pollicis longus and the extensor pollicis brevis — become irritated and inflamed. The tendons pass through a narrow tunnel (tendon sheath) at the wrist; when swelling narrows this space, every movement of the thumb and wrist can be painful.

The most common causes and contributing factors include:

• Repetitive hand, wrist or thumb motions such as lifting, pinching, gardening or gaming
• Direct injury or impact to the thumb or wrist
• Inflammatory arthritis, including rheumatoid arthritis
• Hormonal changes during pregnancy or breastfeeding
• Overuse related to a new or suddenly increased activity

In many cases, no single cause can be identified; the condition develops gradually over time.

Diagnosis and Treatment

A provider at Norton Arm & Hand Institute will review your symptoms and medical history, perform a physical examination and may order imaging studies. Early diagnosis helps avoid prolonged discomfort and prevents the need for more aggressive treatment.

Tests

Physical Examination

The Finkelstein test is one  diagnostic tool. You will be asked to make a fist with the thumb tucked inside, then bend the wrist toward the little finger. Pain along the thumb side of the wrist indicates de Quervain tenosynovitis.

Imaging Studies

X-rays are typically ordered to rule out arthritis or bone abnormalities. Ultrasound or MRI may be used in uncertain cases to visualize tendon inflammation and guide treatment planning.

Treatments

Medications

• Nonsteroidal anti-inflammatory drugs (NSAIDs) such as ibuprofen or naproxen sodium to reduce pain and inflammation
• Corticosteroid injections directly into the tendon sheath to quickly reduce swelling and pain — effective in a majority of patients, especially when started early

Splinting and Physical Therapy

• Thumb splint to immobilize the thumb and wrist and allow tendons to rest
• Hand therapy with a certified hand therapist to restore strength, flexibility and movement patterns
• Ergonomic and activity modification guidance to reduce repetitive strain

Lifestyle Changes

• Temporarily avoiding or modifying activities that aggravate symptoms
• Applying ice packs for 15 to 20 minutes several times daily to manage swelling
• Taking frequent breaks from repetitive tasks and adjusting grip technique

Surgery

When conservative treatment does not provide sufficient relief after several months, outpatient surgery may be recommended. The procedure — de Quervain release — involves opening the tendon sheath to relieve pressure and is typically performed under local anesthesia with a very short recovery period. Minimally invasive techniques are used whenever possible.

Risk Factors

Certain factors increase the likelihood of developing de Quervain tenosynovitis:

• Sex: Women are significantly more likely to be affected than men.
• Age: Most common between ages 30 and 50
• Pregnancy and the postpartum period, particularly in new mothers who frequently lift infants

Prevention

While de Quervain tenosynovitis cannot always be prevented, these measures can reduce your risk:

• Take regular breaks from repetitive gripping, pinching or twisting activities.
• Use ergonomic tools and modify workstation setup to minimize wrist strain.
• Warm up before activities involving repetitive wrist or thumb motions.
• Strengthen forearm and wrist muscles with targeted exercises.
• Avoid holding infants and toddlers with the wrist bent and thumb extended  — use the whole arm and forearm instead
• Listen to your body: Address pain early before it becomes chronic.

Managing Your Condition

Living with De Quervain tenosynovitis or recovering from treatment is easier with a proactive approach:

• Wear your splint as directed, even when symptoms improve, to allow full tendon healing.
• Follow your hand therapist’s home exercise program consistently.
• Apply ice after activities that load the thumb or wrist.
• Report any new symptoms — such as numbness, significant bruising or sudden worsening of pain — to your care team promptly.
• Gradually return to activities; avoid rushing back to full activity before your provider clears you.
• Use assistive devices or adaptive techniques (jar openers, ergonomic pens) as needed during recovery.

Next Steps

Don’t let wrist and thumb pain slow you down. The team at Norton Arm & Hand Institute is ready to help you find relief and get back to doing what you love.