Usually, it comes from a repeated motion or forceful use of your respective finger or thumb. Tendons are fibrous cords that attach muscle to bone. Every tendon is surrounded by a protecting sheath.  Numbness and Tingling: A typical symptom in disorders like Carpal Tunnel Syndrome, in which the median nerve https://www.theorthopaedicandpainpractice.com/why-cant-i-straighten-the-tip-of-my-finger/