The reason why the baby’s head sweats a lot includes physiological factors such as high indoor temperature, exercise, and may also be caused by pathological factors such as calcium deficiency and fever. 1. physiological factors: baby metabolism, and the brain nervous system development is not yet perfect, when the room temperature is too high or exercise, will lead to the child overheating, the body through sweating to dissipate heat, the baby’s head will appear sweating. 2. Calcium deficiency: when the baby did not make up enough vitamin D is prone to calcium deficiency, the blood calcium concentration is reduced, will make the autonomic nervous system dysfunction, resulting in excessive sweating, irritability, shaking head and other symptoms. 3. Fever: baby immunity is poor, by the outside world germs after infection, there will be fever and other discomforts, when the use of antipyretic drugs or in the body temperature drop stage will be through sweating to dissipate heat, thus reducing body temperature, often accompanied by other symptoms. Caused by the baby’s head sweat more causes, need to take the baby to the hospital to improve the relevant examination, under the guidance of the doctor treatment.