A newborn baby crying when he is picked up and put down may be due to insecurity, bloating and other reasons. 1. Lack of security: newborns do not adapt to the extra-uterine environment, often showing symptoms of crying and restlessness, when the newborn is picked up, the sense of security is satisfied, thus alleviating the restlessness, and then make the crying ease. When the baby is put down, the baby will cry again. 2. bloating: newborns hold up not cry put down on the crying may be due to the baby appeared uncomfortable symptoms, such as abdominal distension, when the baby is held up, may be conducive to squeeze the exhaust, stomach distension will be relieved, the baby crying will be relieved, put down this sense of comfort will disappear, there will be the phenomenon of crying. Therefore, the baby should be given enough security, in addition to holding can also be relieved by soothing the baby crying; if the baby is caused by bloating should also go to the regular hospital, and under the guidance of the doctor to deal with.