If the sagging is serious, I suggest you do breast sagging lifting. Doctors will remove excessive breast tissue and fat and raise the areola to a higher position. Lifting operation can also make breasts tough and correct the position of nipples. In addition, it is suggested that the selection of underwear must be based on the chest shape, and it is necessary to wear underwear at the right time, which has a good effect on improving the chest. Some experts also suggest that the size of underwear depends on the chest shape.