Hand tremor during nervousness may be caused by endocrine abnormality due to emotionally induced phytoneurological dysfunction, or it may be idiopathic tremor. 1. Emotional changes such as anxiety, fear and nervousness can cause the body’s plant nervous system dysfunction leading to endocrine abnormalities, usually causing an increase in adrenal hormone levels and thus causing panic, sweating and flushing, and can even lead to severe hand tremors and voice tremors. 2. Idiopathic tremor: mainly manifested as limb or head shaking, nervousness will aggravate the shaking, after drinking alcohol can relieve the shaking. When frequent nervousness hand tremor is recommended to go to the hospital, early detection of the cause of the disease and treatment.