Breasts that are large on one side and small on the other during breastfeeding can be restored by adjusting the order of breastfeeding and keeping the mammary glands open. Breasts that are too big and too small during breastfeeding may be caused by having the baby suckle on one breast too often during breastfeeding, so it is recommended that women should correct the order of breastfeeding. Every time you breastfeed, you can let the baby suck on the small side of the breast first, and then suck on the large side of the breast, which is conducive to promoting the small side of the breast milk secretion, improve the inconsistency of the breast size. If the baby finished one side of the breast milk, you need to use a breast pump to suck the other side of the breast milk clean, you need to keep the mammary glands open. This prevents milk from accumulating in one breast and helps to keep both breasts the same size. The main reason for breastfeeding is the incorrect way of breastfeeding, so if you feel sick during breastfeeding, it is recommended that you consult a doctor as soon as possible.