6 months baby sleep head sweat, may be due to the sleep environment is too hot, too much activity before bedtime, may also be a lack of vitamin D and calcium caused, at the same time, some diseases can also cause the baby sleep head sweat. Parents should always pay attention to the baby’s reaction, there are abnormalities in time to consult a doctor. Common causes 1, environmental factors: the baby in the room temperature is too high, cover the quilt is too thick or too much clothing, easy to lead to the phenomenon of sweating; 2, metabolism is strong: 6 months the baby is in the stage of growth and development, metabolism is more vigorous, before going to sleep, if the over-excitement, too much activity, the body will produce heat, the heat will be evaporated through the sweat, resulting in the phenomenon of sweating after sleep. This is a normal physiological sweating phenomenon, if the baby has no other abnormal reaction, there is no need for treatment; 3, lack of vitamin D and calcium: the baby’s intake of calcium is insufficient, the body’s blood calcium concentration is too low, which will lead to sympathetic excitation, sweating symptoms; 4, fever: if the baby has a fever, can also appear to sleep with the head sweating, and at the same time, can be accompanied by other symptoms of infection, such as sore throat, nasal congestion, 5, tuberculosis: tuberculosis bacillus can cause autonomic dysfunction, resulting in baby sweating, especially concentrated at night, can also be accompanied by low-grade fever, fatigue, weakness, loss of appetite and other manifestations. Treatment 1, the baby’s head sweating, should be timely drying and replacement of thin clothes and quilt; if the indoor temperature is too high, pay attention to appropriate ventilation, or open the air conditioning to cool down; 2, if the lack of vitamin D and calcium caused by sweating phenomenon, parents should take the baby to the hospital in a timely manner to check the blood micronutrients, under the guidance of the doctor to give the baby to take calcium gluconate oral solution, supplemented with vitamin D to Promote calcium absorption; 3, if the baby fever caused by inflammation, it is recommended that timely medical treatment, targeted anti-infective treatment; 4, suspected that the baby has tuberculosis, should be taken to a comprehensive lung examination, in order to timely diagnosis and treatment.