The reason for mouth trembling, 1, to exclude fever-induced chills, the patient will appear relatively high body temperature, in serious cases will reach 39 ℃ and 40 ℃, considering that when people have a fever, the central regulation of body temperature will affect the body’s metabolism, there will be mouth trembling, in serious cases will appear the whole body shivering. 2, mouth trembling clinically can also be seen in idiopathic tremor, for idiopathic tremor is mostly seen in middle-aged and elderly people. The shaking of the head can occur first, and in severe cases, the shaking of the mouth and tongue can occur. If the impact on life is relatively large, when necessary, you can take oral clonazepam and other drugs. 3, can also be seen in extradural diseases, such as Parkinson’s disease, the patient can appear the upper limbs of the shaking, with the progress of the disease aggravated, can appear the whole body of the shaking, such as mouth shaking, after oral medication such as Medobar or Senfro, the symptoms of mouth shaking can be reduced or alleviated.