I would suggest that your father see a neurologist who specializes in Parkinsons. Long term tremor that get worse as time goes on does not automatically mean PD. If he does not have other symptoms it is possible that he has benign essential tremor which is getting more pronounced. Neurosurgeons often do a procedure called thalamotomy which can be very successful in stopping tremor. If your dad's tremor is no big deal he might just learn to live with it. Barbara Yacos, RN <[log in to unmask]>