What Causes Breast Asymmetry?

Woman in pink bra looking frustrated at uneven breasts Breast asymmetry is more common than most people realize. It’s normal for one breast to be slightly different in size, shape, or position than the other. For some women, the difference is barely noticeable. For others, it can affect clothing fit, body confidence, or how they feel day to day.

Dr. York Yates, a board-certified plastic surgeon in Layton, Utah, has seen many women who are concerned about their uneven breasts. He specializes in cosmetic breast procedures and works with patients from across Layton, Salt Lake City, and the surrounding areas. If you’re wondering what causes breast asymmetry and whether treatment is an option, this quick guide breaks down the most common causes. 

Common Causes of Uneven Breasts

In many cases, breast asymmetry begins during puberty. Breasts don’t always develop at the same pace, and while they often even out over time, some differences remain into adulthood. 

Hormonal changes throughout life, such as pregnancy, breastfeeding, or menopause, can also influence breast shape and size. These changes might affect one breast more than the other, which can lead to visible differences.

Weight fluctuations are another factor. Gaining or losing weight can change breast volume, and this may happen unevenly between the two sides. Prior surgeries, trauma, or infections involving the breast tissue can also lead to asymmetry. Some women may notice changes after a lumpectomy or other medical procedure.

There are also a few structural or developmental conditions that can cause more significant differences. These include things like scoliosis or Poland syndrome, a rare condition where one side of the chest muscle doesn’t fully develop. 

When to Consider Breast Surgery

Even subtle differences in the breasts can lead to a sense that something feels “off.” Dr. Yates can help you explore options to bring things into better balance, like a breast liftaugmentationreduction, or revision surgery.

Breast asymmetry is common, but that doesn’t mean you have to live with it if it’s been bothering you. Dr. Yates has helped many patients throughout Layton and Salt Lake City feel more comfortable in their bodies. Call 385-526-5988 to schedule your consultation today.

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Ask us a question, request a private consultation, or submit a pre-visit questionnaire to Dr. Yates.

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