Would weight loss make my breasts appear larger or should I size up to 700cc? Currently 545cc and a DD cup (photos)

Don't go larger. You are having some bottoming out now so you will not support larger implants. Try to lose some weight. Larger is heavier on your neck and shoulders and will stretch your own tissue more.

It appears you have generous volume to your breasts, so I personally would not recommend going larger. Your breasts are very close together and larger implants will place you ask risk for symmastia, i.e. the two breasts may join in the middle.

Yes, weight loss would make your breasts appear larger. However, right now, your breasts are wider than your chest wall and they are almost touching in the midline. You cannot go to larger implants or you will have further problems. You can consider liposuction or a tummy tuck. Unfortunately, your photographs do not include your abdomen and that would be helpful to give a more accurate answer.

Best Wishes,

Gary Horndeski, M.D.