Occasional continuous nodding of the head by infants may be a physiological manifestation; if the symptom does not go away, we should consider that it is caused by Tourette’s syndrome, epilepsy and other factors. 1. Physiological factors: If someone in the family likes to make nodding movements, the child will have similar movements during the learning process. Or due to environmental disturbances, such as being frightened, the body will naturally twitch and nod. 2. Tourette’s Syndrome: A mental disorder that tends to cause twitching of the limbs, accompanied by involuntary vocalizations. The symptoms are usually uncontrolled and cannot be stopped on their own. 3. Epilepsy: It is related to abnormal brain discharges. When a lesion occurs in a certain part of the brain, it may cause nodding epilepsy, which is prone to cause twitching of the arms and legs and shivering of the brain. Infants occasionally continuous nodding, there may also be other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.