Intermittent generalized involuntary convulsions after a child is hit by a car are considered to be brain injuries, such as central nervous system injuries and cerebral hemorrhage. When a child is hit by a car, the head is impacted and the central nervous system is damaged. The central nervous system is mainly in charge of the movement of various parts of the body, and after the central nervous system is damaged, the body will have convulsions, which may show intermittent involuntary convulsions of the whole body. The child was hit by a car and caused brain hemorrhage, such as the temporal lobe of the brain, frontal lobe, parietal lobe parts of the brain hemorrhage, causing the cortex abnormal discharge, it is easy to cause epilepsy, blood clot absorption will occur in the original hemorrhage site of the glial cell hyperplasia, the neurons will irregularly abnormal discharge, the child will appear intermittent involuntary generalized convulsions. The child was hit by a car intermittent involuntary convulsions, there may be other reasons, it is recommended to immediately go to the hospital, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.