Patients with symptoms of hand tremors after brain infarction consider the following reasons: First, if the patient develops hand tremors after an acute brain infarction, it is considered to be related to the site of the brain infarction, and brain infarcts in the frontal, temporal or parietal lobe locations can easily lead to hand tremors and involuntary tremors of the limbs. Second, if the patient develops hand tremors after multiple, recurrent attacks, it is usually considered to be due to multiple cerebral infarcts involving the patient’s bilateral corticospinal tracts and cortical brainstem tracts, resulting in the patient’s manifestation of Parkinson’s syndrome. Patients will also have symptoms of cognitive decline, similar to dementia and muscle weakness, as well as symptoms of choking on water, strong crying and strong laughing, and need to actively seek medical advice and take preventive medication to prevent further increases in cerebral infarction.