Occasional spitting up is normal for most babies because the upper part of the stomach, the cardia, is not yet well developed and is relatively flaccid. When burping your baby, pay attention to the correct burping position, in the vertical holding position. If the baby’s back is patted while tilted or lying flat, the vomiting will be aggravated instead. If the baby vomits only occasionally and has normal body um, frame development and good weight gain, it will gradually improve as it grows older and pays attention to the correct nursing posture. If the baby is vomiting after each feeding, and the physical development is backward, weight loss, pay attention to the possibility of congenital pyloric stenosis or hypertrophy, if necessary, abdominal B ultrasound examination.