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How Can You Predict the Amount of Breast Reduction?

맘스외과성형외과 · *당신을 위한 맘스외과성형외과* · August 20, 2025

One of the most common questions from people who have decided to undergo breast reduction surgery is: “How much can be removed from my breasts?” To estimate this, you first need to...

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This page is an English translation of a Korean Naver Blog archive entry. For exact wording and source context, verify against the Korean archive original and the original Naver post.

Clinic: 맘스외과성형외과

Original post date: August 20, 2025

Translated at: April 25, 2026 at 6:22 AM

Medical note: This translation does not guarantee medical accuracy or suitability for treatment decisions.

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One of the most common questions from people who have decided to undergo breast reduction surgery is:

“How much can be removed from my breasts?”

How Can You Predict the Amount of Breast Reduction? image 2

To estimate this,

you first need to check the current size of your breasts,

that is, how much volume your breasts currently have.

So today, I’ll first explain a method you can use at home

to measure your own breast volume.

How Can You Predict the Amount of Breast Reduction? image 3

This is a volume calculation method

using tape.

First, you can buy cotton adhesive tape

online or at a pharmacy.

Other types of tape can irritate the nipples or skin,

so cotton adhesive tape is recommended.

How Can You Predict the Amount of Breast Reduction? image 4 How Can You Predict the Amount of Breast Reduction? image 5

Since the width of the cotton adhesive tape is 7.5 cm,

cut about twenty 10 cm strips lengthwise

and tape them so that they cover the breasts.

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Since water will later be poured into this,

there should be no gaps.

Apply the tape in 2 to 3 layers,

covering the breast completely with tape.

How Can You Predict the Amount of Breast Reduction? image 8

Then slowly remove the tape

so that the whole thing becomes one single piece,

and you will see a mold shape like a large bowl.

How Can You Predict the Amount of Breast Reduction? image 9

If you fill this with water and then transfer it to a measuring cup,

you can measure your current breast volume.

It may look like a rather primitive method,

but it was actually used in hospitals even 20 years ago,

so it is quite accurate for what it looks like.

How Can You Predict the Amount of Breast Reduction? image 10

Once your breast volume is determined this way,

it becomes possible to predict the amount to be removed during reduction surgery.

In general, about one-third to one-half of this measurement can be reduced.

How Can You Predict the Amount of Breast Reduction? image 11

Another way to think about it is that,

when performing breast reduction surgery,

it is common to leave about 300 to 500 cc behind.

Taking that into account, you can roughly estimate the amount to be removed during surgery

by subtracting that amount from the total measured volume.

How Can You Predict the Amount of Breast Reduction? image 12

Of course, since this is a volume calculation,

it may differ a little from weight.

It can vary slightly depending on whether the removed tissue is fat or glandular tissue,

but in general, estimating 1 cc as 1 g

is not far off.

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If using this kind of method is difficult for you,

I can also tell you a rough estimate of the removal amount based on body weight.

A foreign paper presented the following guideline:

if body weight is under 60 kg, 400 g;

between 60 kg and 80 kg, 700 g;

and if over 80 kg, more than 1000 g should be removed.

You can refer to this guideline.

How Can You Predict the Amount of Breast Reduction? image 14

Of course, these days hospitals do not use such cumbersome measurement methods

based on tape.

They can measure the current breast volume and the expected amount to be removed

through 3D image synthesis.

How Can You Predict the Amount of Breast Reduction? image 15

The amount to be removed is certainly a very important issue

for many breast reduction patients.

However, there is a clear difference in perspective

between doctors and patients.

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From the patient’s point of view,

the amount removed is seen as an important measure

that determines the surgical result.

But from the perspective of the medical team performing the surgery,

they look at this reduction surgery from a completely different angle.

How Can You Predict the Amount of Breast Reduction? image 17

What is considered most important in this surgery

is not the amount removed,

but how much is left.

I believe that is the key factor that determines success or failure.

In fact, the part that has already been cut away and is gone

is not very meaningful.

What matters more is:

“Which parts should be left, and how should they be left

to maintain blood flow to the nipple while leaving a beautiful, small breast shape?”

That is the important issue.

How Can You Predict the Amount of Breast Reduction? image 18

No matter how satisfying the removed gram amount may be,

it is ultimately the part that is gone.

What remains in the body is the result of the surgery,

so this is the key point of reduction surgery.

How Can You Predict the Amount of Breast Reduction? image 19

In other words, rather than focusing on the weight of the removed tissue,

I would like to say that it is better to focus on

how to create a small, beautiful, and natural-looking breast

and discuss that with the medical team.

This is the way to achieve a better result.

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