Summary about Disease
Trigger finger, also known as stenosing tenosynovitis, is a condition that affects the tendons in your fingers or thumb. It causes a finger or thumb to catch or lock in a bent position. The affected finger may then suddenly snap straight, like a trigger being pulled and released. Trigger finger is caused by inflammation of the tendons that control the movement of your fingers and thumb. This inflammation narrows the space within the sheath that surrounds the tendon, making it difficult for the tendon to slide through the sheath.
Symptoms
Stiffness in the finger, especially in the morning
A popping or clicking sensation when you move the finger
Tenderness or a bump (nodule) in the palm at the base of the affected finger
The finger catching or locking in a bent position, then suddenly snapping straight
In severe cases, the finger may become locked in a bent position
Causes
Trigger finger is caused by irritation or inflammation of the tendons that control the movement of your fingers and thumb. This inflammation narrows the space within the sheath that surrounds the tendon. Possible causes and risk factors include:
Repetitive hand movements or forceful gripping
Certain medical conditions, such as rheumatoid arthritis, gout, and diabetes
Trauma to the hand
Being female
Age (more common in adults between 40 and 60)
Medicine Used
Over-the-counter pain relievers: NSAIDs like ibuprofen or naproxen can help reduce pain and inflammation.
Corticosteroid injections: Injecting a corticosteroid near or into the tendon sheath can reduce inflammation and allow the tendon to move more freely.
Surgery: In severe cases, surgery may be needed to release the constricted tendon sheath.
Is Communicable
No, trigger finger is not communicable. It is not caused by an infection and cannot be spread from person to person.
Precautions
Avoid repetitive hand movements and forceful gripping.
Take breaks during activities that involve repetitive hand motions.
Use tools with ergonomic designs.
Wear padded gloves when using tools.
Stretch your fingers and hands regularly.
Manage underlying medical conditions, such as diabetes and rheumatoid arthritis.
How long does an outbreak last?
Trigger finger isn't an "outbreak" like an infection. It's a chronic condition that can persist for weeks, months, or even years if left untreated. Symptoms may come and go, and the duration of symptoms varies depending on the severity of the condition and the effectiveness of treatment.
How is it diagnosed?
Trigger finger is typically diagnosed through a physical examination. A doctor will examine your hand and fingers, and ask you about your symptoms. They will also feel for tenderness or a nodule in the palm of your hand. They will assess the range of motion of your fingers and observe for the characteristic catching or locking. X-rays are usually not necessary as trigger finger does not involve bone.
Timeline of Symptoms
The timeline of symptoms can vary, but generally follows this progression:
Early Stage: Stiffness in the finger, especially in the morning. Mild pain or discomfort.
Intermediate Stage: A popping or clicking sensation when moving the finger. Tenderness or a bump in the palm.
Advanced Stage: The finger catching or locking in a bent position, then snapping straight. Increased pain. Difficulty straightening the finger.
Severe Stage: The finger becomes locked in a bent position and cannot be straightened without assistance or at all. Significant pain.
Important Considerations
Early diagnosis and treatment are important to prevent the condition from worsening.
Non-surgical treatments are often effective, but surgery may be necessary in severe cases.
Even after successful treatment, symptoms can sometimes recur.
Proper hand ergonomics and avoiding repetitive motions are crucial for preventing trigger finger.
Individuals with underlying medical conditions, such as diabetes and rheumatoid arthritis, may be at a higher risk of developing trigger finger and may require specialized management.