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What Is De Quervain's Tenosynovitis?

De Quervain's Tenosynovitis is a painful condition that affects two specific tendons on the thumb side of the wrist. It happens when the sheaths surrounding these tendons, which help the thumb and wrist glide smoothly, become inflamed and swollen. This swelling causes friction and irritation when you move your thumb, leading to pain that can radiate up the forearm or down to the thumb tip. The condition is often referred to as "Mommy Thumb" because it is common in new mothers who frequently lift and carry infants.

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What Is De Quervain's Tenosynovitis?

De Quervain's Tenosynovitis is a painful condition that affects two specific tendons on the thumb side of the wrist. It happens when the sheaths surrounding these tendons, which help the thumb and wrist glide smoothly, become inflamed and swollen. This swelling causes friction and irritation when you move your thumb, leading to pain that can radiate up the forearm or down to the thumb tip. The condition is often referred to as "Mommy Thumb" because it is common in new mothers who frequently lift and carry infants.

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Common Causes of De Quervain's

This condition is classified as a repetitive strain injury. It is not usually caused by a single trauma but rather by chronic, frequent use of the wrist and thumb in a certain way:

  • Repetitive Gripping/Pinching: Common tasks like constantly holding a phone, texting, gaming, or lifting a child.
  • New Activities: Starting a new hobby or job that requires repetitive wrist movements, like gardening or racquet sports.
  • Inflammatory Conditions: Certain types of arthritis can increase the risk of tendon inflammation.
  • Pregnancy: Hormonal changes and fluid retention during and after pregnancy can also contribute.

Symptoms and Diagnostic Test

The defining symptom is pain and tenderness on the thumb side of the wrist, which worsens with movement. You may also feel a sticky sensation or hear a popping sound when moving the thumb. The condition is typically diagnosed using the Finkelstein Test: The patient makes a fist with the thumb tucked inside the fingers, and then bends the wrist toward the little finger. If this movement causes sharp pain on the thumb side of the wrist, the test is positive for De Quervain's.

Treatment Focus: Rest and Reducing Inflammation

Treatment almost always begins with non-surgical, conservative measures:

  • Immobilization: Wearing a brace or splint that includes the thumb and wrist to rest the tendons.
  • Anti-Inflammatory Medication: Over-the-counter NSAIDs (like ibuprofen) to reduce swelling and pain.
  • Corticosteroid Injections: A powerful anti-inflammatory injection directly into the tendon sheath, which is highly effective for many people. If these measures fail, a minor outpatient surgery called a tenosynovectomy may be performed to release the pressure on the tendons.

Lens.com: Supporting Digital Comfort

At Lens.com, we understand that repetitive strain injuries are a common part of modern life, especially with constant digital device use. We encourage proper ergonomic habits to protect your joints, hands, and eyes. If hand or wrist pain is making simple tasks like inserting or removing your contact lenses difficult, it's time to see a specialist to get the care you need.

Frequently Asked Questions About De Quervain's Tenosynovitis

How long does it take for De Quervain's to heal?

With conservative treatment (splinting and rest), most people see improvement within four to six weeks. If a steroid injection is used, pain relief is often felt much sooner.

Is De Quervain's the same as Carpal Tunnel Syndrome?

No. They are both compression issues but involve different tendons and nerves. De Quervain’s affects the tendons on the thumb side of the wrist and is purely a tendon issue. Carpal Tunnel affects the median nerve on the palm side of the wrist.

Can I continue using my phone while recovering?

You should try to limit activities that require pinching or gripping, which includes texting and swiping. When you must use a device, try to use the opposite hand or use voice commands to give the tendons a chance to rest and heal.