What causes twitching of index finger?
Patient: Hi, lately my Index finger left hand twitches for a few seconds every 10 mins.. feels weird., & lately had a tooth extraction. the needle into the back of my gum made me gasp for air , & shake for a minute or two. Not sure if that hit a nerve but my finger goes moves from left to right . Can you explain perhaps? Doctor: Hi,Thanks for writing in.The index finger is supplied by a nerve called the radial nerve. It is made of roots arising from the neck. These roots travel along the arm and become a nerve which ends in supplying the small introssseous, flexor, externsor and lumbrical muscles of the hand.The index finger also has introssseous, flexor, externsor and lumbrical muscles and twitching is brought about by the irritation of any one or more of the muscles in the area.It will help to go to a neurologist and get examined completely. This will help in knowing if the radial nerve is getting pinched at an particular location and that causes twitching. Most likely it is a minor problem. Please do not worry.