Does a Breast Lift Decrease the Size of the Breast Slightly?

Assume your lift is a skin only resection, the lost skin and tissue under the skin contributes to your breast volume - therfore you will loose a modest amount of volume. In addition, the lift tends to make your cup size a little smaller even if breast tissue is not removed.

However, the most important part of a breast lift is getting a durable result and nice shape!

The only way to achieve this goal is to rearrange yor breast tissue to appear lifted, tighter and not so saggy. There are many different techniques that achieve this goal, but most if not all will remove a little tissue in the process. 

With your photos, my suggestion is for a Lejour Mastopexy. 

Good Luck!

Mastopexy (breast lift) is intendd to "lift" your breast by re-arranging your brest tissue, elevating your nipple/areolar complex, and tightening your breast envelope. Breast lift can be done without removing any of your breast tissue by rearranging your breast parenchyma and removing the excess skin.  Your breast volume will then stay the same.  However, you will most likely be wearing a smaller bra because your lifted breasts will be perkier and tighter.  If your goal is to wear the same bra or to have larger breasts, then you will need implants.  Please discuss your desires and expectations with your plastic surgeon.