Determining whether a small child’s convulsions, rolling eyes and fever are okay or not needs to be analyzed based on a specific combination of symptoms. First of all, if a small child’s convulsions, rolling eyes and fever are caused by simple febrile convulsions, and the convulsions are relatively brief and get better within a minute, this situation does not have much effect on the small nervous system. However, if repeated convulsions cause a child to be in a state of oxygen deprivation for a long time, there will be some damage to the child’s nervous system. Therefore, the negative impact of children’s convulsions is mainly determined by the length of the convulsions. If the convulsions exceed 5 minutes, usually due to complex heat shock or central nervous system infection of the extremities, this time the child’s brain cells are severely damaged and can cause severe hypoxia in the child’s brain.