Causes of finger twitching, treatments, and contacting a doctor Finger Twitching as an Early Parkinson's Symptom APDA Why Does my Thumb Twitch Sometimes? Greater Chesapeake Hand to Shoulder What is Hand Arm Vibration Syndrome (HAVS) and how to prevent it What is vibration white finger or hand arm vibration syndrome (HAVS)? A. A mild skin rash that will go away B. A serious skin condition that will not clear up C. Severe frostbite The Real Reason Your Finger Is Twitching