How Common is Breast Asymmetry Among Women?

Question

Hello, I am trying to find out what is the percentage of women who have asymmetric breasts and what would be the average difference in breast size for women? I have right one size C cup and left one size B cup. I would appreciate your help. Thank you.

Young R. Cho, MD, PhD · Answer

Thank you for your question.  Breast asymmetry is very common, particularly size asymmetry.  If you are looking to decrease the asymmetry from one breast to another, then you have several options.
1)  You can reduce the larger breast with liposuction
2)  You can enlarge the smaller one with fat grafting or an implant
3)  You can enlarge both but use different size implants
I would visit with a board certified plastic surgeon to discuss your options in more detail.

Eddy Dona, MBBS, FRACS · Answer

Breast unevenness (asymmetry) is extremely common, varying from mild to extreme. Although no one has perfectly symmetrical breasts, obvious difference between the two may be due to abnormal development, birth defects, trauma or previous surgery. The type and severity of your asymmetry will dictate which corrective procedure is best suited for you. This often involves the combined use of implants and breast lift and/or reduction procedures.

Joshua D. Zuckerman, MD, FACS · Answer

Thank you for your question. Most women actually have some degree of breast asymmetry. I do not know offhand the percentage exactly. If your breast asymmetry bothers you, you might be well served by a breast augmentation. For augmentation, I would not want to place a single implant on one side, but it is common to place breast implants of different sizes in the left versus right breast. Another option would be a breast reduction.

Richard J. Bruneteau, MD · Answer

The vast majority of women have some degree of breast
asymmetry.This asymmetry occurs for a
variety of reasons.It can be related
the volume of the breasts or, in some cases, to the shape of the breasts.In some cases, asymmetry may be related to
the position of the nipple areola complexes, while, in other cases, it may be
related to deformities of the underlying chest wall. Regardless
of the cause, a cup size difference isn’t an unusual finding.When this problem is encountered, a variety
of surgical options are available to treat the problem.If
you’re concerned about breast asymmetry, it’s important to consult a board
certified plastic surgeon.This surgeon
should be able to formulate a treatment plan that addresses your concerns.

Ben Lee, MD · Answer

Some degree of asymmetry is almost universal, although it is uncommon to have enough asymmetry to warrant differential implants. Since you have a cup size difference between the two sides, you would benefit from differential implants. This would go a long ways towards a visually similar result. They may not be exactly the same, but with more volume, perceived differences in the breasts will lessen.

Michael Constantin Gartner, DO · Answer

Asymmetry is definitely the norm for women. One breast is always different in shape or size than the other. The only problem is when the asymmetry is very apparent, which could cause embarrassment for the woman affected. You can get breast augmentation or a reduction surgery to balance out your breasts.

Jerome Edelstein, MD · Answer

Every woman's breasts are asymmetrical, but it is a matter of being able to detect the asymmetry. Some women have just minor differences that can't even be measured by cup size, while others have a difference of several cup sizes (e.g. left is an A and the right is a C). It sounds like you have asymmetry that isn't as severe and most likely quite common.

Otto Joseph Placik, MD · Answer

When it comes to breasts, the vast majority are uneven. It is more common that they are aymmetric rather than symmetric.

Elizabeth Slass Lee, MD · Answer

I cannot find any statistics to quote to answer this question, but I would venture to say that slight differences in breast size and shape is extremely common if not universal. Almost every woman I see has the tendancy for her bra to ride towards one breast, meaning that one is larger than the other. It is unusual for there to be a difference of a whole cup size, but not unheard of. As plastic surgeons, we work to make things as symmetric as possible, but no one starts out perfectly even.

Andrew P. Giacobbe, MD, FACS · Answer

Most patients have some degree of breast asymmetry, although asymmetry of one or more cup sizes is less common. There are many options to correct the asymmetry you have described including enlarging the smaller breast only with an implant, enlarging both breasts with different size implants, and reducing the larger breast. Your board-certified plastic surgeon will explain your options, and help you decide on the procedure of choice for you.

How Common is Breast Asymmetry Among Women?

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