Usually, it arises from a repeated movement or forceful use within your finger or thumb. Tendons are fibrous cords that connect muscle to bone. Each tendon is surrounded by a protective sheath.  Crepitus or Grinding Feeling: This involves a grinding or clicking sensation from the hand or wrist in the https://www.theorthopaedicandpainpractice.com/why-cant-i-straighten-the-tip-of-my-finger/