6 months baby always wake up, there are the following reasons: First, if the baby suffers from acute upper respiratory tract infection and other diseases, because of the increase in respiratory secretions will cause nasal cavity blockage, the baby because of poor breathing, so always wake up. Second, when the baby eats too much due to 6 months of spleen and stomach function will not fit will always wake up, will toss and turn, this is because the stomach is bloated, uncomfortable. Third, due to vitamin D or trace elements among the calcium deficiency caused by plant nerve disorders, calcium deficiency causes night sweats, the baby will always wake up because of the back of the head discomfort, etc., to properly vitamin D and trace elements of calcium reasonable supplementation, the baby always wake up symptoms that can be alleviated.