Factors such as pregnancy, nursing, and the force of gravity can affect a woman's breasts. As the skin loses its elasticity, the breasts often lose their shape and firmness and begin to sag. Breast lift is a surgical procedure to raise and reshape sagging breasts, for a time. (No surgery can permanently delay the effects of gravity.) This surgery can also reduce the size of the areola, the darker skin surrounding the nipple. If your breasts are small or have lost volume, for example, after pregnancy, breast implants inserted in conjunction with a breast lift to increase both their firmness and their size.