###Human: My baby likes to have milk in only one breast. Why? ###Assistant: Hello. It is normal for a baby that he or she chooses any one side of the breast on its own. But if you feel that your breast lopsided then you need to take some tricks. Start to feed your baby from the small one. Let him suck more and more from the small one. After some days, it will become large and engorge. But do not avoid to breastfed from the larger one too. When the large one fills please feed your baby from this side or express milk by using hand. You can use a breast pump to express milk from the larger breast. But if you do not want to use pump, use your hands. You do not need to feed him with this expressed milk. Do continue breastfeeding a few days from small one more and more. After some days both will become balanced. One thing do not practice your baby bottle feeding. Then he won't breastfeed again.