Babies like to shake their heads, generally because the baby habit, lack of vitamin D, skin eczema and other reasons. 1. Habit problem: baby like shaking head partly because the baby likes to shake his head, mostly seen in 6 months after the baby, the baby tends to be more lively character, the ability to imitate is relatively strong, the development of body movement coordination function is also relatively good. Usually do not need to worry, most of the baby with the development of growing up, will improve on their own. 2. lack of vitamin D: vitamin D is a small baby essential nutrients, lack of vitamin D will lead to increased neurosensitivity, irritability, excessive sweating, difficulty in falling asleep, night terrors, but also shaking the head, shaking hands and feet. 3. Skin eczema: small baby skin is relatively delicate, improper care or contact with some allergic substances will cause inflammatory reactions of the skin, resulting in rough skin, peeling, erythema, etc., will be due to localized itching and lead to restless sleep, shaking the head and so on. Babies like to shake their heads, there may be other reasons, it is recommended to go to the hospital in time to improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.