Eating deviated milk means that the baby recognizes one side of the milk to eat and does not like the other side of the milk, which can cause the breast to appear large on one side and small on the other, and should be corrected as soon as it is found. It is very common for babies to prefer partial milk. If a mother notices this phenomenon, it is recommended to change her breastfeeding position immediately. Although the baby may not be used to it after the position change, it will gradually be ignored when the baby is hungry. If the mother does not want to change the child’s habits, she should use a breast pump to empty the other breast after each feeding and use a bottle to feed the child when he or she is hungry, which will reduce the mother’s risk of mastitis while correcting the deviation. In addition, if the mother has breast size discrepancies during breastfeeding, do not worry too much, usually after the baby is weaned can be improved, as long as you pay attention to the daily maintenance of the breast, such as more breast massage, to promote the smooth flow of the breast.