Breast Symmetry Surgery After Lumpectomy, Mastectomy, or Reconstruction: Balancing the Unaffected Breast
- Dr. Mahyar Foumani
- May 18
- 5 min read
Updated: 3 days ago
After a lumpectomy, mastectomy, or breast reconstruction, the two breasts often no longer match. Your healthy breast may look bigger, smaller, higher, or lower than the treated side. Even an excellent reconstruction rarely gives perfect symmetry on its own. Surgery on the other breast is often the simplest way to get a balanced, natural look.
This article explains what symmetry surgery is. You will learn about the three main methods, the best time to have it, and what recovery looks like. The information comes from the book Breast Reconstruction Explained by Dr. Mahyar Foumani, plastic and reconstructive surgeon at the Academic Breast Center Groningen.
What Is Breast Symmetry Surgery?
Symmetry surgery is an operation on your healthy breast. The goal is to match it to the breast that was treated for cancer or rebuilt. Doctors sometimes call it “contralateral symmetrization” — “contralateral” simply means the other side. It is part of breast cancer care, not a cosmetic extra. Many countries cover it for that reason.
Surgeons use three main methods, alone or together: making the breast smaller (reduction), lifting the breast (a “lift” or mastopexy), or making it bigger with an implant. The right method depends on whether your natural breast is larger, lower, or smaller than the rebuilt side.
Making the Other Breast Smaller (Reduction)
This is the most common symmetry operation. It is used when your natural breast is larger than the rebuilt one. This happens often after implant reconstruction with a medium-sized implant. It also happens after lumpectomy and radiation, because the treated breast often gets smaller over time.
The surgeon removes extra breast tissue, fat, and skin. The remaining tissue is then reshaped into a smaller, lifted breast. The nipple is moved to a higher spot to match the treated side. Most surgeons use the “Wise pattern” — an incision shaped like an anchor. It gives good control over both the size and the shape of the breast.
Surgeons usually aim for less than half a cup-size difference between the breasts. Many women notice welcome extra benefits too. They often have less neck and shoulder pain, clothes fit more easily, and they no longer need a breast prosthesis or padded bra.
Lifting the Other Breast (Mastopexy)
A breast lift is the right choice when both breasts are about the same size, but your natural breast sits lower than the rebuilt one. The surgeon removes extra skin, reshapes the tissue, and lifts the nipple. The breast size stays about the same.
There are several lift methods. A small lift may need only a cut around the nipple. A bigger lift uses the full anchor-shaped (Wise) pattern. The surgeon picks the method that best matches the position of your rebuilt breast.
Making the Other Breast Bigger (Augmentation)
Adding an implant to the natural breast is the least common method. It is used when the rebuilt breast is larger than the natural one and cannot easily be made smaller. Some women also choose it because they want larger breasts overall.
The surgeon picks an implant that matches the size, shape, and feel of the rebuilt side. If the natural breast also sags, the lift and the implant can be done together. This combined operation is called an augmentation-mastopexy.
When Should Symmetry Surgery Be Done?
Sometimes symmetry surgery is done during the first reconstruction, especially when both breasts are treated. More often, it waits until the rebuilt breast has settled into its final shape.
Most surgeons advise waiting at least 3 to 6 months after the last reconstruction step. After radiation, they advise waiting at least 6 months. Timing matters: radiated tissue keeps changing for up to one to two years. Operating on the other breast too soon can bring the imbalance back later.
Recovery and What to Expect
Symmetry surgery is usually done under general anaesthesia and takes one to two hours. Most women go home the same day or after one night in hospital. Pain is mild and easy to control with tablets. Most patients return to office work within two to three weeks. You should avoid heavy lifting and hard exercise for about six weeks.
The result keeps improving over several months. Swelling goes down, scars fade, and the breast tissue settles. Scars usually fade a lot during the first year, especially if you protect them from the sun and care for the wound well.
Things to Consider and the Risks
Surgery on a healthy breast is a big decision. Talk these points through with your surgeon:
The change to your healthy breast is permanent, and you will have new scars.
The feeling in your nipple and breast may change. This can be temporary or permanent.
After a reduction or large lift, breastfeeding later may be harder.
There is a small risk (about 3–5% in larger reductions) of losing part of the nipple.
Over the years, the smaller, non-radiated breast may sag more than a firmer radiated breast.
Insurance rules differ by country and policy. Check yours in advance.
Many women feel unsure about having surgery on the healthy breast after all they have been through. These feelings are normal. Talking with women who have already had symmetry surgery often helps. You can find them through support groups or online communities.
Who Is a Good Candidate?
Symmetry surgery on the other breast is usually a good option when:
There is a clear difference between the breasts after treatment.
The rebuilt or treated breast has reached a stable shape.
Radiation effects have settled (at least 6 months after the last session).
Your general health allows an extra planned operation.
You feel ready to make a permanent change to your healthy breast.
Frequently Asked Questions
Is symmetry surgery covered by insurance?
In many countries, yes. This includes the Netherlands, most of the EU, and the United States (under the Women’s Health and Cancer Rights Act). Surgery on the other breast to restore balance after cancer counts as part of cancer care. The rules differ per insurer, so always check your coverage first.
How long should I wait after my reconstruction or lumpectomy?
Most surgeons advise waiting 3 to 6 months after the last reconstruction step. After radiation, wait at least 6 months. This gives the treated side time to reach its final shape, so the other breast can be matched to it well.
Will I lose nipple sensation?
Some change in feeling is common after a reduction or large lift. Most women get meaningful feeling back within 6 to 12 months. For some, a small change in sensitivity stays. Modern methods try to protect the main nerves to the nipple as much as possible.
How visible are the scars?
Symmetry surgery leaves new scars on a breast that had none before. The surgeon places them carefully: around the nipple, straight down to the breast fold, and along the fold itself. They usually fade a lot in the first year, but they never disappear fully.
Can I have symmetry surgery years after my reconstruction?
Yes. You can have it years after your cancer treatment or reconstruction. Many women choose to wait. They live with their rebuilt breast for a while first, so they know exactly what they would like to improve.
Written by Dr. Mahyar Foumani, plastic and reconstructive surgeon specializing in breast reconstruction. Based on the book 'Breast Reconstruction Explained.'
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