A lot of sweat on the baby’s head is usually caused by high temperature, and may also be related to calcium deficiency, fever and other factors. 1. High temperature, the baby sleeps with a lot of sweat on the head, may be due to the bedroom temperature is high or the baby put on too many clothes, so this symptom may occur. 2. Calcium deficiency, if the baby’s body calcium deficiency, calcium levels drop, may lead to increased body excitability, so the baby sleeps a lot of sweat on the head of the symptoms. 3. Fever, if the baby has a fever, the thermoregulatory center is affected, the metabolic rate is faster, the symptoms of a lot of sweat on the head may occur. The baby sleeps a lot of sweat on the head may also have other reasons, it is recommended to go to the hospital in time to improve the examination to clarify the cause of the disease, to give targeted treatment or treatment.