You've got more going on than one breast hanging slightly lower than the other. I do not have the advantage of pre-operative photos or present measurements, but you had "extra" steps, including Mesh and fat grafting, for what most of us would probably simply treat with full breast lift plus implants. Mesh is expensive, and while sometimes used, has not been proven to avoid stretch with time. Like I said, an expensive way to still sag over time. But that's a judgement call, and price/performance decision.Fat grafting yields 50% "take," and if you don't have lumps or firm spots, may need to be repeated for optimal upper pole fullness. Or you could be re-tightened with a repeat lift. More cost (and not avoided by your expensive option list).Your surgical result is good, but far from complete. Yet, the additional changes with time will be more subtle than substantive, and you look as if additional medial and lateral skin tailoring would give better roundness and less of a boxy shape, regardless of how long you wait. I don't think this is swelling; it appears to be in the design of the lift.I would also check sternal notch to nipple distance--for a 5'6" woman (guess), I would suggest about 21cm, which also corresponds to Dr. Penn's article from the 1950's about "ideal" breast proportions. If you are substantially longer than this, then your new nipple position is a bit lower than "ideal," and I too would recommend waiting to see where things end up at 6-12 months post-op when healing is indeed complete. Redo surgery can improve not only the asymmetrical "hang," but all the other issues I see.Again, not bad work, but you paid a substantial price for this surgery, and deserve a correspondingly superlative result. Best wishes! Dr. Tholen