Breast implants do not necessarily make your breasts more likely to sag, in fact in some cases implants may even help to prevent breasts from sagging. As you age your skin will naturally begin to lose its elasticity, your breast tissue reduces and often you will experience some weight gain. Although breast implants add weight to your breasts which can increase sagging, breast implants and the surrounding scar tissue can also provide internal support for your breasts, which helps to control sagging. You can help to avoid sagging by making sure you wear a properly fitted bra.