In the appearance of PD patients we can notice that the blinking rate of spontaneous blinking is lower than normal but voluntary blinking is similar to general population. The other finding in PD patient is that their spontaneous facial expressions are less frequent and less varied in comparison to normal people (hypomimia)
In physical<unk>  the have Cogwheel rigidity, Resting tremor, Gait problems, Bradykinesia, Olfactory dysfunction and Orthostatic hypotension.
Parkinson's disease physical examination
Alzheimer's disease physical examination
Dementia physical examination
Delirium physical examination
Multiple sclerosis physical examination
Charcot-Marie-Tooth disease physical examination
Restless legs syndrome physical examination
Bartter syndrome physical examination