I Had a BA Just Short of a Year Ago, Will Running Cause Them to Sag? I'm a 38DD and Used to a 34c. (photo)

There is a risk of future change in breast shape after breast implant surgery. Age, gravity, weight loss and pregnancy are some of the things that can cause the breast tissue to slide off the front of the breast implant. The breast implant doesn't tend to change, but the overlying breast tissue does. Exercise is good for you and should be encouraged, just make sure you wear a good support bra. I hope this helps.

Well done on your weight loss and your lifestyle transformation! Breast sagging can occur to all of us whether we run or not, and can be accelerated by the effects of gravity, poor skin tone and elasticity, heavy implants and weight changes. I would encourage you to wear a supportive sports bra when you run and enjoy your new body.