The child’s backward tilting and jerking is considered normal if it is a voluntary activity; if it is not a voluntary activity or unconscious, epilepsy and convulsions need to be considered. 1. Autonomous activities: if the child is autonomous activities, backward tilting and jerking, it is considered to be a normal symptom, or mimic the surrounding people. 2. Epilepsy: epileptic seizures have many clinical features, such as tonic seizures, which are characterized by strong contraction of the muscles of the whole body with loss of consciousness, manifested as a torsade de pointes, which is similar to the backward tilting and jerking. 3. Convulsions: Convulsions can also be characterized by loss of consciousness, double vision, head tilting, and tonic convulsions, mostly occurring in intracranial infections, systemic infections, and intracranial diseases. If the child often tilts his head back, try to take the child to the hospital to exclude the cause of the disease.