Baby always shaking head, may be related to physiological factors, may also be due to head eczema, otitis media and other causes. 1. Physiological factors: the baby is in a period of growth and development, the metabolism is more vigorous, easy to lead to sweaty head, especially the hot weather or to the baby dress, cover too thick, etc., the head sweats more, sweat on the scalp to form a stimulus to the scalp, resulting in scalp itching, there may be the phenomenon of always shaking the head. 2. Head eczema: common in allergic babies, in the pollen, ultraviolet light, food and other factors of stimulation, easy to cause head eczema, resulting in the scalp parts of the pimples, pimples, resulting in scalp itching, there may be always shaking the head of the situation. 3. otitis media: if the baby suffers from otitis media, there will be ear pain, ear stuffiness, tinnitus and other symptoms, which may cause the baby always shaking his head, as a way to alleviate the above uncomfortable symptoms. The baby always shaking his head, may also be caused by other reasons, exclude physiological factors, should be as soon as possible to seek medical attention, clear cause, by the doctor’s guidance treatment and adjustment.