Twitching and shivering can be caused by mental factors, epilepsy and febrile convulsions. 1. Psychological factors: when the spirit of extreme panic or severe anxiety, nervousness, it is easy to appear twitching and shivering, generally smooth mood, mental relaxation, the symptoms will gradually ease. 2. Epilepsy: It is more likely to be epileptic seizures, one is primary epilepsy, for which no obvious cause can be found. There is another kind of secondary epilepsy, which is caused by cerebral infarction, cerebral hemorrhage, cerebral cavernous hemangioma, cerebral vascular malformation and brain tumor. 3. Febrile convulsions: If the fever persists and does not go away, when the fever reaches more than forty degrees, it is very likely to have febrile convulsions, which can be manifested as convulsive shivering. There are many causes of convulsive shivering, and it is recommended that the patient go to a regular hospital for diagnosis and treatment in time to avoid delaying the condition.