Parkinson’s disease is one of the common causes of hand tremor, but not all Parkinson’s disease presents with tremor, the central feature of which is slowed movement. The typical Parkinsonian tremor is a resting tremor that can occur in the limbs, lips or jaw at a frequency of 4 to 6 times per second.
In addition to Parkinson’s disease, many diseases and physical conditions can cause tremor, such as
Idiopathic tremor.
Multiple system atrophy.
Total spinal cerebellar disorder, etc.
Therefore, it is said that hand tremor is not equal to Parkinson’s disease.