Shivering and trembling can be caused by environmental factors, mental and psychological factors, infectious factors, idiopathic tremor, Parkinson’s disease and other factors. 1. Environmental factors: in a cold environment, wearing too little clothing, there will be symptoms of shivering and trembling, which is a normal physiological phenomenon, and can be improved after strengthening the warmth measures. 2. Psychological factors: excessive mental tension or excitement, it is also easy to appear body shivering and trembling, there is no other clinical manifestations, adjusting the psychological state can be restored on their own. 3. Infectious factors: for example, viral colds may cause patients to have high fever, which can lead to shivering and trembling, accompanied by sneezing, runny nose, fatigue, limb aches and pains and other symptoms. 4. Idiopathic tremor: it may be related to genetic factors, in excessive fatigue, hunger or emotional excitement, the body will appear shaking and trembling phenomenon, usually can be relieved on their own, usually do not need special treatment. 5. Parkinson’s disease: the probability of appearing in the elderly group is higher, the patient may frequently appear in the body shivering and trembling symptoms, accompanied by slow movement, muscle tonus and other manifestations. The frequent occurrence of shivering and trembling symptoms should be alerted to disease factors, and it is recommended to seek medical examination and treatment.