The phenomenon of sleep instability and head shaking in infants is one of the common symptoms in pediatrics, which is generally related to the imperfect development of their nervous system; it is also related to local skin infections or discomfort caused by stimulation of the sleep environment and micronutrient deficiency. First of all, it is closely related to the imperfect development of the nervous system and certain diseases in infants and toddlers, which can occur in the early stage of their development and is a normal physiological condition. The second is related to skin diseases. Secondly, skin diseases can also cause the above-mentioned situation, such as eczema reaction or folliculitis on the head, face and body parts, which can cause discomfort and sleep instability in babies. On the other hand, due to the rapid physical development of infants and young children, if there is no regular supplementation of vitamin D, it is possible to combine vitamin D deficiency rickets, resulting in increased neuroexcitability caused by sleep instability shaking head situation, you can give oral vitamin D treatment under the guidance of the doctor.