There is no accurate blood or imaging diagnostic test for Parkinson’s. Doctors make the diagnosis based on clinical examination - though this can be difficult as other conditions such as Alzheimer's disease can resemble PD and must first be excluded.
Lower-back pain is the most common pain-related condition in the West (Radiographics, 1998; 18: 621-33) and, in a fair proportion of cases, the culprit is diagnosed as a slipped disc - technically known as a ‘herniated lumbar disc’ or ‘prolapsed...
What Doctors Don't Tell You