When does one consider breast asymmetry to be abnormal? This is quite subjective, as any asymmetry is more noticeable to the person who has it, than to the general onlooker. However, corrective surgery for breast asymmetry is often considered if the difference in breast size is more than a cup size, or the shape of the breast is obviously different between the two sides.Breast shape is considered in several perspectives, as a measurement of the natural 'breast template': the level (where the underside of the breast sit on the rib cage), the projection (how much does the breasts protrude forward), the height (the upper limit of the breast), and the width of the breast. The breast is also divided into four quadrants, and in some instances, specific quadrants may have not developed properly during puberty. Asymmetry in breast development may also be associated with abnormalities in the underlying rib cage. Sometimes, one side of the rib cage is underdeveloped or sunken in, thus giving the illusion that one breast is smaller and lower than the other.
Procedures to correct breast asymmetry are variable depending on the patient's preferences and expectations. Sometimes surgery may need to be done on both sides to create better symmetry. The most important aspect of correcting asymmetry is realistic expectations, as perfectly symmetrical breasts is not possible, especially if the natural breast templates or underlying rib cage are completely different to start with. Excellent cosmetic results can often be achieved however, and provides the patient with improved self-esteem, posture and quality of life.
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