If sleep dreaming and hitting occurs, it is usually due to the following factors: 1. Fast moving eye sleep behavior disorder. Need to visit the neurology department of the hospital for evaluation and exclusion of neurodegenerative diseases.2 Often occurs in patients with a previous history of epilepsy, or who have had previous encephalitis, where the presence of abnormal brain discharges can lead to abnormal limb activity, injury to others and self-injury.3. In some cases of poor neurological regulation, such as neurological disorders, endocrine dysfunction, frequent anxiety, In some patients with poor neurological regulation, such as neurological disorders, endocrine dysfunction, frequent anxiety, insomnia, dreaminess, reduced deep sleep phase and increased light sleep phase, dreaming and hitting may occur during the light sleep phase. 4. In some patients with diabetes mellitus combined with neurological dysfunction, dreaming and hitting may also occur due to autonomic dysfunction.