How to choose
your implant size

Why the question is not about cup size, which three measurements decide the choice, and why a larger implant does not mean a better result.

Almost every breast augmentation consultation begins with the same sentence: “I want to be a D.” That is understandable, but it is also the least accurate way to describe the result you want.

Cup size is not a unit of measurement. The same D-cup bra on a woman with a chest circumference of 70 cm and on one with 90 cm means two completely different breasts. That is why choosing an implant starts not from the letter but from three specific measurements.

The three measurements that decide

The base width of the breast. This is the most important number. An implant wider than your own breast base bulges at the side, its edge becomes visible, and over the years it stretches the tissues outwards. An implant narrower than the base leaves the outer part of the breast flat.

Projection. For the same width, an implant can be low, moderate or high profile. This determines how far the breast projects forward. Two women with implants of the same volume in millilitres can look completely different.

The thickness of your own tissue. This is measured with a pinch test at the upper pole of the breast. When the tissue is thin, soft-tissue coverage over the implant matters more, and this is taken into account when deciding on implant position and profile. There is no simple rule — the decision is individual.

Why bigger does not mean better

A breast is not a bag that we put something into. It is tissue that has to carry weight.

Over the years, a large implant under thin skin does three things: it stretches the skin, pulls the breast downwards and makes the implant edges visible. A result that looks good at six months may need a second operation by year five.

This is also why an experienced surgeon will sometimes suggest less than you asked for — not to play it safe, but because they know what the same breast will look like in ten years.

Round or anatomical?

Round implants give more pronounced fullness in the upper part of the breast. Anatomical (teardrop) implants have a gentler slope that resembles a natural breast.

Neither is better or worse. Both types can look completely natural when the size and position are chosen correctly. Anatomical implants have specific indications, but they also carry a risk of visible rotation and are often textured — which is a separate discussion about risks. The choice is made at the consultation, according to your anatomy and goals.

How to prepare for the conversation

• Bring photos of results you like — and of ones you do not. The latter are more revealing
• Think about your priority: volume, shape or a natural look. The three do not always go together
• Say what kind of clothes you want to look good in — this changes the recommendation
• Be honest about your sport and physical activity

At the consultation, sizers may be tried on in a bra to give you an idea of the volume. This is not an exact simulation, but it is far more useful than talking in numbers.

What no one can promise

An exact cup size after surgery. Bra sizes vary between brands, and the breast changes over the first few months as the implant settles into its natural position.

Perfect symmetry. Everyone's breasts differ from each other before surgery, and they remain slightly different afterwards.

That the result will look like the photo. It will look like your own breast with an implant, not like someone else's.

That the implant will last a lifetime. It is not a lifelong device — it is not replaced according to a calendar, but it does need follow-up, and some women need another operation years later.