Breastfeeding to prevent breast sagging can be prevented by choosing the right underwear as well as strengthening the chest muscle exercise and other ways. 1. Choose the right underwear: Generally speaking, during the breastfeeding period, due to the change of hormone level, as well as the increase of fat, so it is easy to appear the situation of breast enlargement. At this time, you need to choose the right underwear to better drag the breasts to avoid sagging. 2. chest exercise: usually because the body gradually recovered well, is possible to strengthen the chest, muscle exercise to improve. For example, you can properly do flat support, light lifting dumbbell action, help to enhance the breast to maintain the beautiful shape of the breast. The ultimate solution to the problem of sagging breasts after breastfeeding should be based on the specific requirements and specific circumstances, listen to the advice of a professional physician.