Your doctor will examine you. He or she will pay extra attention to the neurological examination.
Your doctor will look for symptoms of PD, especially:
The classic PD tremor
Slowness of movement
There is no specific diagnostic procedure or laboratory test to establish a Parkinson's diagnosis. Doctors diagnose the disease based on the symptoms and physical and neurological exams.
If a patient's symptoms improve after taking PD medication, the diagnosis is probably correct.