<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hi , I have cervical rib. A few years back My left hand fingers were numb but after some exercises it was Ok. Now I have occasional pinky finger tremble two or three times a day for about a minute or less but no numbness or pain. Is it due to again Cervical rib or PD Parkinson disease I am 61 healthy without any Blood Pressure , Or Diabetes problem and absolutely no history of PD in family. I am very active , nice sleep at night , no sleepy sensation in the morning , no urinary inconsistency etc.  <response>: Hi, Actually it may be a case of Trigger finger, ulnar nerve pathology, ganglion, cyst, also this happens with overuse I suggest MRI for proper evaluation. I dont think it is related to your old injury due to absence of numbness and pain. Please click THANK YOU and consider a 5-star rating with some positive feedback if the information was helpful. Hope the above information helps you. Any further clarifications feel free to ask. 