Breast reduction complications: real frequencies and warning signs

Breast reduction is one of the operations with the best results in the whole specialty. It is also one of those that gives the most healing problems — and those two sentences do not contradict each other: what tends to go wrong here is the wound, not the result.

This page gives the published frequencies, not adjectives: what proportion of patients has some setback, of what kind, what makes it more likely, which signs cannot wait for the review, and a final figure that surprises almost everyone.

⚠️ A warning about how to read the figures that follow. Studies count as a “complication” any departure from the expected course, and in this operation most of them are healing delays that resolve with dressings. A high number of minor setbacks is not the same as a high number of serious problems, and here it is the former.

The operation is in the breast reduction guide and the preparation beforehand in how to prepare.

How often, exactly

The most useful published reference is a review of 1,021 patients (2,142 breasts) operated on at a single centre between 2016 and 2020, with different types of pedicle.

🔑 Before the table, the warning that makes the number mean something. That paper counts as a complication any recorded event, including the smallest: an area of the scar that is slow to close enters the percentage just as a serious problem does. And in this operation the mild kind is the vast majority. So 21% is not “one in five operations goes wrong”: it is “one in five has something to deal with along the way”, almost always a healing delay and almost always resolved with dressings.

With that in front of you:

⚠️ That difference between pedicles is not a clean comparison. The authors themselves note that the subgroups differed significantly in their baseline characteristics: they were not allocated at random, but each technique was chosen for the type of breast it suited. Reading it as “one pedicle is better than another” would be drawing a conclusion the study does not support. The techniques are on the page on patterns and pedicles.

And the confirmation that the reading above is the right one is further down, in the section on satisfaction: having one of these complications did not lower how happy the patients were. A problem that lengthens the journey without changing the destination is not the same as a serious one, even though in the statistics they occupy the same box.

What raises the risk

This is where the information becomes actionable, because some of these factors can be worked on beforehand.

What depends on anatomy

The amount of tissue to be removed. In the series of 1,021 patients, resection weight was the only significant independent risk factor, and the analysis pinpointed the tipping point: above 1,700 grams of total resection, the risk of complications increased significantly.

The distance from the notch of the breastbone to the nipple. Above 36.5 cm it correlated with complications of the nipple-areola complex. It is a measurement taken at the first consultation and it anticipates what will need most attention.

Neither of the two is chosen. What is chosen is planning with them in view rather than discovering them in theatre, and that is why the preoperative assessment is not a formality. How they shape the plan is on what cup size will I be and how much is removed.

What can be worked on

In a series of 661 patients operated on by 13 surgeons, those who developed a complication were on average older, with a higher body mass index and more likely to have high blood pressure and diabetes (p < 0.01). And specifically, patients with obesity had more infections and more need for surgical revision.

Translated into what you can do before surgery:

• Weight control counts, uncomfortable a subject as it is and not always within your control. If you are considering losing weight first, there is a page dealing with that decision and its nuances: losing weight before or after.
• Diabetes and blood pressure well controlled before surgery, not on the day.
• Smoking, because of its known effect on the healing of any wound.

What can happen, and what is normal

Separating them is what prevents both the unnecessary fright and the consultation that comes too late.

Part of the normal course:

• Swelling and bruising that change colour over weeks.
• Discomfort and tightness, above all when moving your arms.
• Altered sensation in the nipple and the skin, with gradual recovery.
• Red and raised scars for months, which then fade and flatten.

Not part of it, and worth reporting:

• Fever.
• Redness that spreads around the wound.
• Pain that increases rather than easing.
• Active bleeding, or a breast that swells rapidly and becomes tense.
• Discharge or a bad smell.
• A nipple that changes colour — darkening, turning purple or white.
• The wound opening, above all at the point where the scars cross.

The last one deserves a note: the scar opening a little where the lines cross — dehiscence — is the most typical thing in this operation and does not mean it went wrong. It is the area of greatest tension, healing is slower there, it resolves with dressings and time, and what changes the outcome is being seen early.

Which pedicle we operate with here

The pedicle is the bridge of tissue that keeps the nipple supplied with blood and sensation when it is moved. It is the technical decision that weighs most in this operation.

That the usual one is the superomedial fits what the table above shows — it is also the most used in the series of 1,021 patients and the one with fewest events recorded — but that is not the reason for choosing it: it is that in most breasts it is the one that best secures the nipple’s blood supply over the distance that has to be covered. When the anatomy calls for something else, something else is done.

The areola graft is the final step and it is not a preference: it is what is left when the nipple has to be raised so far that no bridge of tissue would guarantee its blood supply. It has consequences for breastfeeding and for sensation, and it is discussed before surgery. All three options are developed in patterns and pedicles.

🔑 Who you ring on a Sunday

It is the question almost nobody dares ask in clinic and the most reassuring one to answer:

Every patient operated on here has their surgeon’s direct contact number. On a Sunday afternoon they write or ring him, with no switchboard, no voicemail and nobody in between.

It is worth understanding why that is not a matter of good manners. Everything on this page — the dehiscence caught early, the redness that is watched, the nipple that changes colour — depends on someone seeing it in time. A route for raising the alarm that works on a Sunday is, in practice, part of the treatment.

⚠️ And if you had surgery elsewhere, the person who has to see you is the person who operated on you; outside their hours, hospital A&E. Our clinic is available for anything that is not urgent.

The figure almost nobody mentions

And probably the most useful on the whole page.

In the series of 661 patients, 180 answered a validated breast-specific satisfaction questionnaire. Of those, 41 had had at least one complication. When the two groups were compared, there were no significant differences in any of the questionnaire’s outcomes.

The authors’ conclusion is verbatim: although optimising risk is essential, patients and surgeons can be reassured that satisfaction can be achieved even if a complication arises.

Put another way: a wound complication lengthens the journey, but it does not usually spoil the destination. And that fits what really measures the result: in a meta-analysis with 4,677 patients, 90% had a significant improvement in back pain after surgery.

Frequently asked questions

How likely is it that something will go wrong?

In the largest published single-centre series, with 1,021 patients, the overall rate was 21%. Most are healing problems that resolve with dressings.

What is the commonest complication?

Wound problems, and in particular a partial opening at the point where the scars cross. It is an area of tension and it does not mean the surgery went wrong.

Could I lose the nipple?

It is the most feared complication and the least frequent. What is documented is that a breastbone-to-nipple distance greater than 36.5 cm is associated with more complications of the nipple-areola complex, and that is why that measurement shapes the technique.

Does my weight matter?

In a series of 661 patients, those who had complications had on average a higher body mass index, and patients with obesity had more infections and more revisions. It is one of the few factors that can be acted on beforehand.

And if I have diabetes or high blood pressure?

Both were associated with more complications in that same series. They are not a barrier in themselves, but it is worth coming to surgery with them well controlled.

If something goes wrong, will it look bad?

That is not what the data say. In the study cited, satisfaction measured with a validated questionnaire was the same in those who had complications and those who did not.

When do I have to ring?

For fever, spreading redness, increasing pain, active bleeding, discharge or a nipple that changes colour. Do not wait for the scheduled review.

Do scars count as a complication?

Their normal course does not: they are red and raised for months before they fade. A scar that widens or becomes hypertrophic is a different matter, one with a treatment of its own, and it is covered in scar revision.

Sources

• Mahrhofer M, Wallner C, Reichert R, Fierdel F, Nolli M, Sidiq M, Schoeller T, Weitgasser L. Identifying complication risk factors in reduction mammaplasty: a single-center analysis of 1021 patients applying machine learning methods. Updates Surg. 2024;76:2943-2952. Retrospective review of 1,021 patients (2,142 breasts) who had a primary bilateral reduction between January 2016 and March 2020; the superomedial pedicle was the most used (48.0%) and the overall complication rate was 21%; rates differed above all between the inferior pedicle (24.9%) and the superomedial (17.7%), although the pedicle subgroups showed significant demographic variance; resection weight was the only significant independent risk factor (OR 1.001; p = 0.007), with a threshold of 1,700 g above which overall risk increased significantly, and a sternal notch-to-nipple distance greater than 36.5 cm correlated with complications of the nipple-areola complex. https://pubmed.ncbi.nlm.nih.gov/39243317/
• Park JB, Adebagbo OD, Rahmani B, et al. BREAST-Q Analysis of Reduction Mammaplasty: Do Postoperative Complications of Breast Reduction Surgery Negatively Affect Patient Satisfaction?. Aesthet Surg J. 2024;44:NP852-NP861. Retrospective review of 661 patients operated on by 13 surgeons between January 2017 and February 2023, of whom 131 developed at least one complication; the group with complications was on average older and had a higher body mass index, and was more likely to have high blood pressure and diabetes (p < 0.01); among the 180 patients who answered the BREAST-Q questionnaire, 41 had had at least one complication and there were no significant differences between groups in any of the outcomes; patients with obesity had more infections and more revisions (p < 0.01); the authors conclude that satisfaction can be achieved even in the face of a complication. Level of evidence 3. https://pubmed.ncbi.nlm.nih.gov/39052922/
• Böhmer EM, Betsch M, Stumpfe M, Horch RE, Migliorini F, Pasurka M. The Impact of Reduction Mammaplasty on Back Pain and Posture in Patients with Macromastia: A Systematic Review and Meta-Analysis. Plast Reconstr Surg. 2025. Meta-analysis with 47 studies included and 25 contributing data (n = 4,677); 90% of patients experienced significant relief of back pain (95% CI 86-93%). Level of evidence II. https://pubmed.ncbi.nlm.nih.gov/41428958/

Book your consultation

If you are considering surgery, the useful conversation is not whether there is risk — there is, and it is quantified here — but what yours is: how much tissue would have to be removed, what your measurements are and which factors can be improved beforehand.

And if you have already had surgery and something is not going as you expected, do not wait for your review: ask to be seen.

Clinical confirmation by the surgeon

Dr Enrique Salmerón González

Specialist in Plastic, Aesthetic and Reconstructive Surgery
Registration no. 46/4624077

Dr Elena García Vilariño

Specialist in Plastic, Aesthetic and Reconstructive Surgery
Registration no. 46/4624503

Last reviewed: 6 September 2026. This content is for information only and does not replace an individual assessment by a healthcare professional.