How will weight loss affect my bust size?

Question

Im at 133 lbs and my breast are 40 inches .I want to loose 20 lbs , 110ish is my goal weight. When i weighed 160 lbs my bust was 41 inches. Think when i do loose 20 lbs my bust well shrink 5 or more inches ? Is my bust going to go down 2-3 inches , like 37-38 bust. Im 5'4 , with a small-medium body frame. I have a 35 band and wear a 36C.

Daniel Barrett, MD · Answer

Dear Plucky992068,
weight loss will affect all fat cells in your body, including the ones in your breasts. So you can expect some decrease in size but nobody can tell you exactly how much will you lose.
Daniel Barrett, MDCertified, American Board of Plastic SurgeryMember, American Society of Plastic SurgeryMember, American Society of Aesthetic Plastic Surgery

Leila Kasrai, MD, FRCSC · Answer

Generally speaking, weight loss can affect breast size and shape. However, there is no way to determine how much your breasts will change with weight loss. They may or may not decrease in size and become saggier.

Sean T. Lille, MD · Answer

Hi Plucky, 
Unfortunately, no one can predict what your ultimate size will be after weight loss. Everybody responds to weight loss differently. Sometimes it affects breast size and sometimes it doesn't.  You just have to wait and see what you are left with. 
Best Wishes!

Ted Eisenberg, DO, FACOS, FAACS · Answer

As little as 10% change up and/or down can change breast size because of the fat in the breast that is lost. Dr. Ted Eisenberg, Board Certified Plastic Surgeon and Author. RealSelf Distinguished Hall of Fame Inductee. Philadelphia, Pa., USA

Steve Laverson, MD, FACS · Answer

It's difficult to accurately predict how much your breast size will reduce with weight loss.  This depends on how much fat and the type of fat you have in your breasts and elsewhere in your body.  If your breasts are mostly glandular tissue with little fat, they'll maintain their size well despite weight loss.  If your breasts have depot fat, They'll also maintain their size relatively well until starvation, during which depot fat is the final fat storage mobilized to meet your energy needs.  If your breasts have regular fat and enlarged with weight gain, they will diminish in size with weight loss.  Fat transfer or implants can restore their volume after weight loss if you wish.

John L. Burns Jr., MD · Answer

It is always good to be at your goal weight before undergoing plastic surgery. This ensures that you choose the perfect implant to match your goals.

Jon S. Wilensky, MD · Answer

Weight loss can have varying effects on breast size, as it depends on several factors including genetics, body composition, and where your body tends to store fat. Here are some general considerations:1. Loss of Breast Tissue: Breasts are composed of a combination of glandular tissue, fat, and connective tissue. When you lose weight, some of the weight loss may come from the fat tissue in your breasts, potentially leading to a reduction in breast size.2. Genetics and Body Composition: Different individuals may experience weight loss differently. Some people may lose weight more noticeably in certain areas, including the breasts, while others may not see as much change.3. Elasticity of the Skin: The elasticity of your skin plays a role in how your breasts respond to weight loss. If your skin has good elasticity, it may adapt to changes in breast size more effectively. However, if you have lost a significant amount of weight, particularly rapidly, the skin may not fully retract, and the breasts might appear somewhat saggy.4. Muscle Tone: Incorporating strength training exercises into your weight loss routine can help maintain or enhance the tone of the chest muscles, which can contribute to the overall appearance of the breasts.5. Age: As you age, your skin tends to lose some of its elasticity, which can affect how your breasts respond to weight loss.It's important to note that everyone's body responds differently to weight loss, and changes in breast size may not be the same for everyone. If you are concerned about the potential impact of weight loss on your bust size, it's advisable to consult with a plastic surgeon. They can provide guidance based on your specific circumstances and help you understand how weight loss might affect your body.

Connie Hiers, MD, FACS · Answer

No one can say how much fat you will lose in your breasts because everyone woman is different as to how much fat is present in the breast.  You may lose or you may stay about the same.

Camille Cash, MD · Answer

There is no way to accurately predict how much your breasts will change with a given weight loss.  Some women notice big changes in their breasts if they gain or lose weight, while others notice hardly any change.  If after you have reached your goal weight you would like more volume to the breasts you can schedule a consultation for breast augmentation with a board certified plastic surgeon near you.

Mats Hagstrom, MD (license on probation) · Answer

Most women have a significant percentage of breast tissue made up of subcutaneous fat. This means the breast will shrink if you lose weight.
Best,
Mats Hagstrom, MD.