Newborns cry and stirrups while eating milk, may be choking, may also be gastrointestinal discomfort or oral ulcers. 1. choking: due to some mothers milk more, faster flow, newborns in the milk due to the inability to swallow the breast milk in time, it will be easy to milk choking situation, which led to the baby eating and crying and stirrups phenomenon occurs. 2. Gastrointestinal discomfort: Because the digestive system of newborns is not yet well developed, if too much milk, may not be able to digest and absorb it in time, prone to intestinal spasms, manifested in the eating and crying and stirrups phenomenon occurs. 3. Mouth ulcers: If a newborn has mouth ulcers, it will cause pain during breastfeeding, which will also lead to newborns crying and stirring their legs during breastfeeding. The newborn’s breastfeeding crying and stirrups, it is recommended to improve the breastfeeding method, abnormalities in time to consult a doctor, follow the doctor’s instructions for symptomatic treatment.