2026-06-04
Capsular Contracture Probability and Symptoms? Essential Side Effect Information Before Breast Surgery
We have detailed the causes, symptoms, and stage-by-stage treatments for capsular contracture, the most concerning side effect when considering breast surgery. From a specialist's perspective, we explain why the capsule thickens and how the latest implant technologies are reducing the probability of this occurring.
If you are planning breast augmentation, you likely have high expectations for a satisfying shape and feel, along with significant concerns about potential side effects. In particular, capsular contracture, considered a major side effect of breast surgery, is the topic patients ask about most frequently during consultations. Today, we will explore everything in detail, from the definition and causes of capsular contracture to how it can be improved through the latest medical technologies.
1. What is Capsular Contracture? Definition and Main Symptoms
In the term Capsular Contracture, 'capsular' refers to the spherical, ball-like shape it can create, and 'contracture' means the tissue clumping together and hardening. When a foreign object like an implant is introduced into our body, a thin 'capsule' forms around it as a protective measure. Capsular contracture refers to a condition where this capsule becomes abnormally thick and compresses the implant.
- Change in texture: The breasts do not feel soft and instead feel hard like a rubber ball.
- Shape distortion: The implant is pushed upward, causing an 'upper pole fullness' phenomenon where the top of the breast bulges.
- Displacement: The symmetry of both breasts may be broken, or the implant may shift to one side.
2. Core Causes of Capsular Contracture: Infection and Capsule
The most primary cause of capsular contracture is known to be a micro-bacterial infection during the implant insertion process. If bacteria attach to the surface of the implant during surgery, they form a layer called a 'Biofilm.' These bacteria continuously stimulate an immune response, causing the capsule to become abnormally thick.
Additionally, the probability of contracture can increase if the implant ruptures and silicone components continuously irritate the capsule, or if a hematoma (blood clot) that occurred during surgery is not properly absorbed. Therefore, maintaining a strict sterile environment and performing precise hemostasis during surgery are of utmost importance.
3. Baker’s Classification and Diagnosis
The severity of capsular contracture is usually diagnosed using a 4-stage index called Baker’s classification.
- Grade 1: A normal state where the breast looks natural and feels soft.
- Grade 2: The breast looks normal but feels slightly firm.
- Grade 3: The implant boundaries are visibly noticeable, the breast feels definitely firm, and the shape begins to distort.
- Grade 4: The breast is very hard, severely distorted in shape, and accompanied by pain.
However, for individuals who originally have less breast tissue, changes can be distinctly felt even at Grade 2, so clinical observation must be conducted in parallel.
4. Probability of Occurrence and Safety by Implant Type
In the past, there were reports that the incidence of capsular contracture reached 15-20%, but currently, with the advancement of surgical techniques and the use of safe, FDA-approved implants (Mentor, Allergan, Sientra, etc.), the incidence rate has significantly dropped to less than 5%.
Previously, textured implants were considered more advantageous against contracture than smooth implants. However, recently, the use of macro-textured implants with rough surfaces has been restricted due to their association with a specific rare cancer (BIA-ALCL). Today, thanks to technological advancements, it is recommended to choose the most suitable type for each individual by considering the pros and cons of each implant.
5. Prevention and Treatment: When Revision Surgery is Needed
Once capsular contracture occurs and the capsule thickens, it does not naturally thin out again. In the early stages with mild symptoms, the progress can be monitored while taking medication, but if it progresses to Grades 3 or 4, surgical treatment is recommended.
- Capsulectomy: The abnormally thickened capsule is physically removed.
- Implant Replacement: The existing implant is removed, and a new implant is inserted, or the insertion plane is changed.
Although the probability of capsular contracture has decreased, it is still a side effect that requires caution. It is advisable to undergo surgery at a facility equipped with a safe system, after identifying your constitutional factors through thorough pre-operative examinations and sufficient consultations.
