Medical Oncologist
Reconstruction
Implant rupture and when implants need replacing
You often would not know. Modern silicone implants are filled with a cohesive gel that holds together, so a split in the shell frequently causes no symptom at all. Saline implants are the opposite and deflate visibly. This page explains how rupture is found, what is done about it, and why it is not an emergency.
MM
Medically reviewed by Dr. Muralidhar MuddusettyConsultant Surgical Oncologist · MBBS (AIIMS), MS (Surgery, AIIMS), DNB (Surgical Oncology), MRCS (Edinburgh) · last reviewed September 2026, next review due September 2027
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The short answer
How would I know if my implant has ruptured?
Often you would not. Modern silicone implants are filled with a cohesive gel that holds together, so a split in the shell frequently causes no symptom at all. Saline implants are the opposite: they deflate visibly over days.
What a silent rupture means
The gel stays within the scar capsule your body formed around the implant, so nothing changes in shape or feel. It is usually found on a scan done for another reason. This is why it is called a silent rupture.
When there are signs
A change in shape or size, new firmness, a lump, or aching. Where gel escapes beyond the capsule it can cause swelling or small lumps in the armpit. Any of these is worth reporting, though most turn out to be something else.
How it is confirmed
MRI is the most reliable test. Ultrasound is often used first because it is quicker and cheaper, and it picks up many but not all ruptures. A mammogram is not a good way to assess an implant.
A ruptured implant is not an emergency. It is something to plan a replacement around, not to panic about.Side by side
Silicone and saline behave very differently
Silicone gel implant
Saline implant
Rupture is often silent
Deflates visibly, usually over days
Gel usually stays inside the capsule
Salt water is absorbed harmlessly by the body
Found on MRI, sometimes ultrasound
Obvious by looking in a mirror
Replacement planned, not urgent
Replacement planned once shape is lost
Commonest type used in reconstruction today
Less often used for reconstruction now
What is done
What happens if a rupture is found
Almost always a planned operation rather than an urgent one.
Replacing the implant
The usual answer. The old implant and any free gel are removed, the capsule is inspected and often removed too, and a new implant placed at the same operation.
Removing without replacing
Some women take the opportunity to stop. The implant comes out and a flat closure is done. This is a legitimate endpoint rather than giving up.
Ask for a neat flat result if you choose this.Converting to your own tissue
Where there have been repeated problems, particularly after radiotherapy, replacing the implant with a flap solves the cycle for good. A much bigger operation.
Watching, occasionally
Where a silent rupture is found incidentally in someone unfit for surgery, monitoring is sometimes reasonable. Most surgeons prefer to replace, because free gel can migrate over time.
Ask your surgeon
- Is it inside or outside the capsule
- How soon does it need doing
- Is this covered by my scheme
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Words you will hear
The vocabulary, in plain language
- Intracapsular rupture
- The shell has split but the gel is still held inside the scar capsule. The commonest pattern, and usually silent.
- Extracapsular rupture
- Gel has escaped beyond the capsule into surrounding tissue. Less common, and more likely to cause lumps or swelling.
- Cohesive gel
- Modern silicone filling that holds its shape rather than running. It is why rupture is so often symptomless.
- Deflation
- What happens to a saline implant. The salt water is absorbed and the breast visibly loses shape.
- Silicone granuloma
- A small lump formed where escaped gel has caused a local reaction, sometimes in the armpit.
- Explant
- Removing an implant, whether or not a new one is placed.
Being straight with you
What is known, and what to expect
Implants are not lifetime devices. The longer one is in place, the more likely a rupture becomes, and many women with a reconstruction will need something done to the implant eventually. Planning for that is more useful than hoping otherwise.
A silent rupture is not dangerous
Gel held within the capsule does not make you ill and there is no evidence it causes disease elsewhere in the body. It is replaced because free silicone can migrate over years, not because you are at immediate risk.
Routine scanning is not standard everywhere
Some countries recommend periodic MRI to look for silent rupture; others scan only when there is a reason. Practice differs, and both positions are defensible. Ask what your surgeon advises and why.
A mammogram will not answer this
Mammography is a poor test for implant integrity, and in a reconstructed breast it is not routinely done anyway. If rupture is the question, MRI is the test, with ultrasound as a quicker first look.
Rupture is not the same as contracture
Women often conflate the two. A ruptured implant usually feels no different; a contracted one feels hard but is intact. They are separate problems with separate treatments, and both can be present at once. Ask which you are being told you have.
Keep a record of what you have
Manufacturer, type, size and date of surgery. You should have been given an implant card. Keep it with your other records, because any future surgeon will want it and memories are unreliable a decade on.
Commonly believed
What women are told about rupture
A ruptured implant is a medical emergency.
It is not. Gel held inside the capsule causes no harm, and replacement is planned at a convenient time rather than urgently. What warrants prompt review is new swelling, a lump or pain, because those may mean gel has escaped.
Silicone leaking causes disease throughout the body.
There is no good evidence that silicone from a ruptured implant causes illness elsewhere. It has been studied extensively. If you have read otherwise and it worries you, bring it to your surgeon rather than acting on it alone.
I would obviously know if it had ruptured.
With modern cohesive gel, most ruptures cause no change in shape or feel at all, which is exactly why they are called silent. Saline implants are different and do visibly deflate. Know which type you have.
Implants should be replaced every ten years regardless.
There is no fixed replacement interval, and routine exchange of an implant that is intact and comfortable is not standard. What is true is that risk rises with time. Ask your surgeon what they advise for the type you have.
Questions we are asked
Common questions about implant rupture
How long do implants last?
There is no fixed lifespan, and they are not designed to last forever. The chance of rupture rises the longer one is in place, and many women need something done eventually. Ask your surgeon what they expect for the type you have rather than relying on a general figure.
Should I have a scan to check?
Practice differs. Some recommend periodic MRI to find silent ruptures; others scan only when there is a reason to suspect one. Ask what your surgeon advises and why, and weigh it against the cost and the chance of finding something that changes nothing.
Can a mammogram detect it?
Not reliably, and mammography is not routinely done on a reconstructed breast anyway. MRI is the accurate test, with ultrasound often used first because it is quicker and cheaper.
Does rupture cause illness?
There is no good evidence that silicone from a ruptured implant causes disease elsewhere in the body, and this has been studied at length. Local effects such as lumps where gel has escaped are real and are what replacement addresses.
How urgent is the replacement?
Usually planned rather than urgent, over weeks to months. Where gel has escaped beyond the capsule, surgeons generally prefer not to leave it indefinitely, because it can migrate further. Ask for a timeframe rather than a vague soon.
Will insurance cover replacing it?
Cover varies and replacement years after reconstruction is sometimes treated differently from the original surgery. Get written confirmation before booking, and ask whether the scan to diagnose it is covered too.
Can I choose to have it out and not replaced?
Yes, and some women do. The implant is removed and a flat closure performed. Ask specifically for a neat flat result rather than simply removal, because the two are not the same operation.
What should I keep on record?
Your implant card, showing manufacturer, type, size and the date. Keep it with your pathology report and operation notes. Any surgeon assessing you years later will ask, and it is difficult to reconstruct from memory.
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Sources
- Cancer Research UK — Breast reconstruction with implants
- National Cancer Institute — Breast reconstruction after mastectomy
- Breast Cancer Now — Breast implants and reconstruction
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