What Is Wrist Tendonitis? Causes, Symptoms, and Treatment

Wrist tendonitis is a common source of discomfort and restricted movement, often resulting from the strain of everyday life. This condition involves the tissues that connect muscle to bone, which become irritated and painful when subjected to repeated stress. Because of the frequent use of the hands and wrists, this issue affects a wide range of individuals across many occupations and hobbies. Understanding the injury, its causes, and treatments can provide a clear path toward relief and recovery.

The Anatomy of Wrist Tendonitis

Wrist tendonitis is an inflammatory condition affecting the tendons in the wrist, which are thick, fibrous cords linking the forearm muscles to the bones of the hand and fingers. The suffix “-itis” denotes inflammation, meaning tendonitis describes the acute swelling and irritation of these connective tissues, often due to micro-tears from overuse. These tendons glide through protective, fluid-filled coverings called tendon sheaths, which ensure smooth movement.

When the condition progresses, the inflammation can specifically affect this sheath, a related issue known as tenosynovitis. If the condition becomes chronic, the inflammation often subsides, and the tendon tissue begins to degenerate, a non-inflammatory process termed tendinosis. Chronic wrist pain may reflect this degenerative change in the collagen structure of the tendon itself.

Causes and Risk Factors

The most frequent origin of wrist tendonitis is repetitive strain injury, where a specific motion is performed continuously over time, causing cumulative stress on the tissues. Activities like extensive computer use, including typing and using a mouse with poor wrist posture, are primary contributors. Manual labor jobs, such as assembly line work or carpentry, that require forceful, repeated movements also place workers at a higher risk.

Specific sports involving gripping and repeated wrist action, such as tennis, golf, or rowing, can trigger the condition. The risk increases with a sudden increase in the frequency or intensity of an activity, which does not allow the tendons time to adapt. Underlying health conditions, including rheumatoid arthritis and diabetes, can also predispose an individual to tendon issues by affecting tissue health and healing.

Recognizing the Physical Signs

The primary indication of wrist tendonitis is pain, which can manifest as a persistent, dull ache that worsens with movement. This discomfort may escalate to a sharp, stabbing pain when attempting to move the joint or bear weight. Patients often experience localized tenderness, where pressing directly on the affected tendon causes increased pain.

Swelling is common, often appearing subtly around the wrist joint or along the path of the tendon. The inflamed area may also feel warm to the touch and appear slightly red due to increased blood flow. In some cases, a grinding or creaking sensation, known as crepitus, can be felt or heard when moving the wrist, caused by the irritated tendon sheath thickening and rubbing.

Recovery and Treatment Options

Initial management for wrist tendonitis typically focuses on conservative, non-surgical strategies to reduce inflammation and promote healing. A common first approach involves the RICE protocol: Rest, Ice, Compression, and Elevation. Rest involves avoiding the specific activity that caused the irritation, often through the temporary use of a splint or brace to immobilize the wrist.

Applying ice for 15 to 20 minutes several times a day helps reduce pain and local swelling. Over-the-counter nonsteroidal anti-inflammatory drugs (NSAIDs), such as ibuprofen or naproxen, can be taken orally to decrease pain and inflammation. Topical anti-inflammatories, like diclofenac gel, offer a localized alternative.

Physical or occupational therapy is often recommended to strengthen the forearm muscles and improve flexibility, helping the tendon tolerate stress better. Therapists provide guidance on specific stretches, progressive resistance exercises, and ergonomic advice to modify daily activities and prevent recurrence. If conservative measures fail, a physician may suggest a corticosteroid injection, which delivers a potent anti-inflammatory directly to the area.

Steroid injections are used sparingly due to the potential for weakening the tendon with repeated use. Surgical intervention is considered a last resort, typically reserved for severe, chronic cases that have not responded to six months or more of non-surgical treatment. The procedure generally involves removing scar tissue or inflammatory tissue to allow the tendon to glide freely within its sheath.