Newborns diaphragm, phrenic nerve development is not perfect, easy to hiccups all the time, the common causes are improper feeding, abdominal cold, inhalation of cold air and so on. 1. Improper feeding: If you feed your baby when he or she is crying, or if the nipple is not suitable, or if you feed him or her when he or she is lying down, he or she will easily swallow a lot of gas, which will lead to abdominal distension and hiccups. If overfeeding, it will also stimulate the phrenic nerve and diaphragm, causing hiccups, and even spitting up and choking. Parents should avoid letting their babies swallow a lot of gas, pat their backs in time, and don’t overfeed. 2. Abdominal cold: the baby’s abdomen is cold, stimulate the diaphragm spasm, can also cause hiccups, at this time should pay attention to abdominal warmth. 3. Inhaling cold air: when the outside temperature is too low, the baby inhales cold air, which will also cause hiccups. In short, the newborn hiccups caused by a number of reasons, such as persistent non-relief, should be timely pediatric consultation, clear cause, take targeted treatment.