Capsular contracture develops when the capsule of scar tissue that normally forms around a breast implant becomes thicker and tightens more than expected. It can make the breast feel firm or change its shape and, in more advanced cases, cause pain. Not every painful, swollen or changed breast after implant surgery has capsular contracture. A change that develops years later, in particular, should be assessed before a diagnosis is assumed.
What is capsular contracture?
Every breast implant becomes surrounded by a thin capsule of scar tissue. This is a normal part of healing and is not a complication when the capsule remains soft.
We use the term capsular contracture when the capsule becomes unusually firm and compresses the implant. It can affect one or both breasts and may appear in the first few months or develop years after surgery.
In brief: you may suspect capsular contracture if a breast gradually becomes firmer, sits higher, looks rounder or changes shape, especially if it is painful. An examination is needed because a firm or painful breast can also be caused by a seroma, implant rupture, infection or implant displacement.
- A thin, soft capsule is normal
- Baker grade I is not pathological
- Firmness may be accompanied by a change in shape or pain
- Baker grades III and IV are the most clinically significant
- Diagnosis is primarily clinical
Explore this guide
A normal capsule versus capsular contracture
The word “capsule” can sound alarming, but every implant has one. The important distinction is between a normal capsule and one that has become clinically problematic.
Normal capsule
- It is thin and flexible.
- The breast feels soft.
- The implant retains a natural position and shape.
- It does not cause pain or visible distortion.
Capsular contracture
- The capsule thickens, hardens or tightens.
- The breast may gradually feel firmer.
- The implant may appear higher, rounder or distorted.
- Pain can occur in advanced cases.
Baker grades of capsular contracture
The Baker scale classifies breast firmness and visible changes assessed during an examination. It helps guide treatment, although it is a clinical assessment and different examiners may grade the same breast differently.
Grade I
The breast is soft and looks natural. This is the normal state around an implant and is not considered pathological contracture.
Grade II
The breast feels somewhat firmer but still looks normal. If it remains stable and causes no discomfort, monitoring may be sufficient.
Grade III
The breast is firm and has a visible change in shape or position. Treatment is considered according to the deformity and symptoms.
Grade IV
The breast is hard, distorted and painful. This is the most advanced grade and often requires revision surgery.
Symptoms of capsular contracture
The most typical symptoms are progressive firmness, reduced implant mobility, a feeling of tightness and changes in breast shape. The breast may look higher, rounder or asymmetric. Pain is more typical of advanced grades.
One breast feeling slightly firmer than the other does not, by itself, confirm contracture. Differences may also be caused by the amount of breast tissue, muscle, pre-existing asymmetry, implant position, rupture or a collection of fluid.
Prompt assessment helps identify the cause before attributing the change to contracture. Early assessment cannot guarantee that surgery will be avoided, but it helps distinguish early contracture from seroma, rupture, infection or implant malposition and supports timely treatment decisions.
A firm breast does not always mean contracture
| What you notice | What it may suggest | What to do |
|---|---|---|
| Gradual firmness, a higher position or a rounder shape | Capsular contracture | Clinical examination and ultrasound to assess the implant and rule out other causes. |
| Sudden swelling of one breast | Seroma, bleeding or inflammation | Seek assessment without delay; a late fluid collection requires ultrasound-guided aspiration and specific testing. |
| New pain years after surgery | Contracture, rupture, inflammation or another breast or muscle condition | Do not assume the diagnosis: have an examination and imaging when indicated. |
| Redness, warmth or fever | Infection or inflammation | Seek prompt medical advice to rule out a complication requiring treatment. |
| A change in shape or position | Contracture, malposition or rupture | Compare both breasts and assess the capsule, implant pocket and implant integrity. |
How common is capsular contracture?
Capsular contracture is one of the more significant long-term complications and a common reason for revision surgery after breast augmentation. That does not mean there is one percentage that applies to every patient.
Published rates vary with the indication—cosmetic augmentation or reconstruction—the type and surface of the implant, its placement, radiotherapy, postoperative complications, the definition used and, especially, the length of follow-up. It would therefore be misleading to turn a single figure into a personal guarantee.
Careful planning and technique can reduce the risk, but cannot eliminate it. When a clinic or implant manufacturer reports outcomes, the number of patients, Baker grade counted, losses to follow-up and duration of observation also matter.
Why does it happen? Causes and risk factors
Capsular contracture is multifactorial. A patient's inflammatory and healing response, implant characteristics, the environment of the implant pocket and events such as a hematoma, seroma or infection may all play a part. Low-virulence bacteria and biofilm have also been investigated as possible contributors, but they do not explain every case.
Clinical factors
- A previous capsular contracture.
- Breast reconstruction and radiotherapy.
- Longer time since implantation.
- Individual healing response.
Implant-pocket complications
- Postoperative bleeding or hematoma.
- Seroma around the implant.
- Clinical infection or bacterial contamination.
- Implant rupture in some cases.
Implant placement
In cosmetic augmentation, some meta-analyses have associated subpectoral placement with less contracture than prepectoral placement. However, the studies are heterogeneous, do not necessarily reach the same conclusion for reconstruction and do not always compare equivalent implants or techniques.
We therefore do not regard placement beneath the muscle as universally better. We choose between subglandular, subfascial, dual-plane and subpectoral placement according to each patient's anatomy, tissue coverage, implant and goals. Read the systematic review and meta-analysis.
Implant surface
“Textured” does not describe a single type of surface. Historically used macrotextured implants, lower-roughness microtextured surfaces such as MESMO, and smooth or minimally rough surfaces such as SmoothSilk have different clinical profiles. Rougher surfaces were historically associated with less contracture in some settings, but also with late seromas and other surface-specific complications.
In our published series of 621 procedures, contracture rates were comparable between POLYtxt and MESMO. The more striking difference was late seroma—6.4% with POLYtxt versus 0% with MESMO—alongside lower overall complication and reoperation rates with MESMO. Each surface needs to be assessed separately; the same risk cannot automatically be attributed to every textured implant. Read the study by Marcelli and Aso.
Can capsular contracture be prevented?
Complete prevention cannot be guaranteed. We can, however, reduce the risk through appropriate patient selection, precise pocket dissection, meticulous control of bleeding, infection-prevention measures, careful handling of the implant and postoperative follow-up.
In the operating room, we use a meticulous technique: careful hemostasis, minimal handling of tissues and the implant, glove changes and no-touch-type measures. Antibiotic prophylaxis is tailored to the procedure and clinical protocol. Insertion devices—such as the Keller Funnel or the mia Femtech injector—allow more controlled insertion with less contact, but should not be presented as a proven guarantee against contracture.
The incision may also play a role. A meta-analysis found an association between periareolar incisions and more contracture than inframammary incisions, although the evidence comes from comparative studies of limited quality. This does not mean a periareolar approach is wrong in every case. The incision should be chosen in the context of all relevant factors. Read the meta-analysis.
Implant placement and implant type should be individualized. No single surface, incision or technique is always best for every patient.
How is capsular contracture diagnosed?
Diagnosis begins with your medical history and an examination of both breasts. We assess how symptoms have evolved, breast firmness, pain, shape, implant position and changes since previous appointments.
Clinical examination
This allows us to estimate the Baker grade and assess whether firmness is accompanied by distortion, upward displacement of the implant or pain.
Ultrasound
Ultrasound assesses the implant and surrounding tissues, detects even small fluid collections and helps distinguish contracture from seroma, rupture and other changes.
MRI
MRI may be appropriate if a silicone implant rupture is suspected or ultrasound cannot resolve an important question.
Investigation of a late seroma
If a late seroma develops, ultrasound-guided aspiration and cytology with immunohistochemistry, including appropriate markers such as CD30 and ALK, are essential. It should not simply be treated as contracture without completing this investigation.
Treatment of capsular contracture
Treatment depends on the grade, symptoms, how long the problem has been present, implant condition, surface, placement and medical history. A mild, stable contracture is not managed in the same way as a painful, visibly distorted breast.
Baker I
The breast is soft and normal. No treatment of the capsule is needed.
Baker II
If the breast looks normal, is painless and remains stable, it may be monitored with clinical reviews and ultrasound.
Baker III–IV
When there is significant distortion, pain or progression, revision surgery is often considered. The decision is tailored to the individual case.
Recurrent contracture
We need to review possible causes, implant placement, the previous implant, tissue quality and options to reduce the risk of another recurrence.
Surgery may combine implant removal or exchange, capsulotomy, partial or total capsulectomy, correction of the implant pocket and a change of implant placement. The available evidence does not support one mandatory combination for every patient. In our practice, advanced contracture generally means removing the implant associated with the problem and carefully planning how to address the capsule, without reusing the explanted device.
When contracture is accompanied by thin tissues, breast drooping or significant distortion, secondary surgery may also include fat grafting, a breast lift or a flap of the patient's own tissue to improve coverage and restore breast shape. These are useful reconstructive techniques, but they do not replace treatment of the capsule or guarantee that contracture will not recur.
If a new implant is placed, it should be chosen for the patient's current circumstances. For patients with macrotextured implants, late seromas or surface-related problems, we generally consider much smoother implants—smooth, nanotextured or microtextured—while assessing the individual risks of contracture, malposition and other complications.
Our approach at Clínica Dr. Aso
The aim is not to label a firm breast as contracture too quickly. It is to confirm the diagnosis, rule out associated problems and choose the least invasive option that is both safe and predictable.
We perform follow-up ultrasound after breast surgery involving implants. It helps document changes over time, assess the device and detect even very small fluid collections.
Before assigning a grade, we assess both breasts, their firmness, shape and position, any pain, and changes since previous appointments.
If fluid appears years later, we arrange ultrasound-guided aspiration and cytology with immunohistochemistry through a specialist partner laboratory.
If surgery is needed, we decide how much capsule to remove and how to manage the pocket, implant placement and new device according to the findings and medical history.
What can capsular contracture look like? Photos of a real case
Its appearance varies considerably. Some patients primarily notice firmness; others develop a higher breast position, a rounder shape or visible distortion. The following images show a patient treated with a breast lift and replacement of ruptured implants affected by contracture.
Individual result: these photographs show one patient's outcome and cannot, on their own, establish the grade of contracture. The appropriate treatment and result depend on each patient's anatomy, implant, capsule and surgical needs. You can also explore our gallery of real breast surgery cases.
