The scar from a breast lift will depend on the type of breast lift performed, the surgeon performing the procedure, the individual healing characteristics of the patient, and any complications that may occur during the healing process.
There are varying degrees of breast lift procedures. The least extensive procedure would be the removal of skin around the areola. In this case, the only scar will be around the outside of the areola. If a more extensive breast lift is required, then another incision from the areola down to the fold of the breast may be necessary. Some patients also require an incision along the crease of the breast. Typically, the incision around the areola and the incision from the areola down to the crease of the breast heal with the least visibility.
The quality of the scar is also dependent on the surgical technique. You should make sure you select a surgeon who has had extensive experience in all types of breast surgery and ask to see photographs.
Some patients scar worse than others no matter what technique is performed. Unfortunately, there is not a lot that can be done to influence this tendency.
If there is any complication such as wound separation or infection, then the scar will usually be more visible.