Idiopathic trigger finger is caused by friction. Prevention Premium: 20 Doctor-Recommended Natural Remedies For Everyday Ailments And, usually, it's the thumb that is affected. If the sheath doesn't grow at the same speed as the tendon, it can cause the fingers to freeze. Babies and small children are affected by trigger finger when their tendon sheath fails to develop fully. Trigger finger can affect any digit, and the condition can be congenital or idiopathic-meaning you can have trigger finger from birth, or develop it over time. (Get more smart health advice delivered straight to your inbox by. Mild trigger finger typically only causes tenderness and stiffness, but it's good to be aware of the warning signs, adds Yang. Steven Yang, MD, MPH, clinical associate professor of orthopedic surgery at NYU Langone Medical Center. "A classic trigger finger is relatively simple to diagnose, because the finger is stiff and tender at its base and clicks or catches as it bends," says S. The good news: While trigger finger can be painful and inconvenient, the condition is easily treated, and many treatment options offer lasting relief. ![]() It occurs when the sheath that encases the finger's tendon, or synovial lining, swells from inflammation, which prevents the tendon from moving freely and causes pain or a popping and locking sensation in the finger or thumb. Trigger finger-also known as stenosing tenosynovitis-is a painful condition where fingers get stuck in a bent, trigger-ready position.
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