Dear applesaresoymmy22, any major changes in weight will also cause changes in breast shape and size. So, if you lose much weight your breasts will probably deflate and sag. Daniel Barrett, MDCertified, American Board of Plastic SurgeryMember, American Society of Plastic SurgeryMember, American Society of Aesthetic Plastic Surgery

If you were to lose weight would your breasts sag again? The true answer is maybe. Weight loss of five to ten pounds won't likely have much of an impact on your results. However if you lose 50 pounds then you may see changes. Other factors that can influence your results are pregnancy as well as the size of your implants (larger implants are heavier).

There is no guarantee but it is common for the breasts to sag with weight loss, particularly when it is dramatic. That’s why it’s recommended that patients achieve a stable ideal weight before considering a breast lift.

Losing too much weight in a short period of time may cause skin to be saggy. You should consider losing 2-3kgs/month not more to reduce the risk of sagging after surgery. Another way to prevent sagging is to lose weight than get your surgery done.

It's the stretching of the breast tissue with at least 10% up and down weight change that could be the culprit in some cases. Dr. Ted Eisenberg, Board Certified Plastic Surgeon and Author. RealSelf Distinguished Hall of Fame Inductee. Philadelphia, Pa., USA