The baby’s dry heaving before eating milk may be physiological factors, may also be indigestion, upper respiratory tract infection and other pathological factors. 1. Physiological factors: the child’s nervous system is not yet fully developed, the pharyngeal reflex is more sensitive, in the milk before triggering the pharyngeal reflex will cause the baby to eat the milk before the dry heaves, as the baby’s nervous system continues to develop this situation will gradually disappear. 2. Pathological factors: children due to the digestive system is still developing, gastrointestinal power is poor, digestive fluid, if the baby eat too much food caused by gastrointestinal dysfunction, resulting in indigestion, leading to the baby to eat milk before dry heaving. Or due to bacterial or viral infection of the upper respiratory tract, resulting in nasopharyngeal inflammation discomfort, nasal secretions backflow, stimulate the throat, causing the baby to eat milk before dry heaving. The baby before eating milk dry nausea, there may also be other reasons, it is recommended to go to the hospital in time to improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.