Surgical Breast Enlargement
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Implant size is not just a number of cubic centimetres. Width, projection and volume interact, and the right balance depends on your chest and soft tissue.
Volume
Volume is measured in cubic centimetres (cc). It describes how much the implant holds, not how large it will look on you. The same volume can look modest on a wider chest and fuller on a narrower one.
Base width
Base width is the measurement across the bottom of the implant. It should fit the width of your breast so that the implant does not extend past the natural base or leave tissue uncovered. A base that is too wide may cause problems at the sides of the breast or under the arm.
Profile or projection
Profile describes how far the implant projects forward. Manufacturers use terms such as low, moderate, moderate-plus and high, but these names differ between brands and are not standard.
- Lower projection gives a broader, more gradual look.
- Higher projection gives a fuller, more forward look on a narrower base.
How they interact
For a given volume, a higher-profile implant has a narrower base. For a given base, a higher volume usually means more projection. A wide implant on a narrow chest can create problems, high-projection implants may look more obviously augmented in some people, and overly large dimensions raise the chance of stretching, thinning and later surgery.
Reading the surgical plan
A written plan should state the implant volume, base width, profile, surface, shape and placement, and explain why those choices suit your measurements. If two plans give the same volume but different widths, the look and the risks are not the same. Ask which measurement drove the decision.
Why cup size is a poor guide
Cup size depends on band size and manufacturer, so it cannot describe an implant. A 300 cc implant may produce different cup sizes on two people. Use cup size to describe your goal, then let measurements guide the choice.
Tools and questions
Surgeons measure the breast base, assess tissue pinch and may use sizers. Treat computer simulations as a rough indicator only.
- What base width and profile do you recommend for me?
- How will this look compared with other options?
- What are the trade-offs?
Key takeaway
Ask about width and projection, not just cc or cup size. See choosing implant size and the breast implants guide.
Draft review and sources
Before publication: qualified clinician review and current Indian regulatory verification, where relevant, are required. Sources: FDA: Breast Implants · CDSCO: Medical Device & Diagnostics.
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Related education
Safety and warning signs
Candidacy, risks and when to seek medical help.
External research and sources
Study findings, limitations and original publications.
Choosing implant size
Why cup size is unreliable and how volume is assessed.
Breast implants
The wider guide to implant choices.
Implant placement
How the pocket and muscle affect the final look.