A newborn’s breastfeeding for an hour is not full may be due to the wrong way of breastfeeding, insufficient milk, newborns eat while sleeping and so on. 1. the wrong way: if the breastfeeding position is not right, will lead to the newborn milk may only contain nipple does not contain areola, or nipple inversion and the newborn sucking is not forceful and so on the wrong way may lead to the newborn breastfeeding an hour are not full of the situation. 2. Insufficient milk: If the mother’s milk is insufficient milk flow is too small, it will also make the newborn baby breastfeeding for an hour are not full. 3. Newborns eat and sleep: Some newborns will put the nipple in their mouths when they sleep, so when they eat milk, they may eat a little bit of sleep, breastfeeding for an hour are not full. Newborns breastfeeding an hour are not full may also have other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to determine the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.