Signs and symptoms
Saline rupture is unmistakable. Silicone rupture usually presents as nothing at all, which is the single most important thing to understand about it.
The short answer
A ruptured saline implant deflates, so the breast visibly shrinks and changes shape over hours to days. A ruptured silicone implant frequently produces no symptoms whatsoever. When it does, the usual signs are a change in shape or size, new firmness, lumps in the breast or armpit, and sometimes pain, tingling or numbness.
Saline rupture
Saline implants are filled with sterile salt water. If the shell fails, that water leaks out and your body absorbs it without harm. The breast deflates.
- Noticeable loss of size, usually on one side
- Change in shape, often visible within a day or two
- Sometimes a rippling or wrinkled appearance as the shell empties
- Occasionally a sensation of the implant “sloshing” before it fully deflates
The saline itself is harmless. What remains is an empty shell that needs removing, but the deflation is not dangerous in itself.
Silicone rupture
Modern silicone gel is cohesive, so when the shell tears the gel commonly stays in place, held by the capsule around the implant. The result is that many silicone ruptures produce no change in shape, feel or appearance at all. This is why the FDA recommends imaging surveillance rather than symptom-watching.
When silicone rupture does cause symptoms, these are what people describe:
- A change in shape or size, usually gradual rather than sudden
- New firmness or hardening, which can also indicate capsular contracture and often accompanies it
- Lumps or nodules in the breast, or in the armpit where silicone has reached lymph nodes
- Pain, tenderness or a burning sensation
- Tingling, numbness or altered sensation
- Swelling, or a visible change in the contour of the breast
None of these is specific to rupture. Every one of them has other explanations, which is why imaging rather than symptom-checking is what settles it.
What these symptoms could also be
Being straight about this matters more than reassurance:
- Capsular contracture — firmness and shape change are its features too. See contracture symptoms.
- Late swelling around an implant — this is the presentation associated with BIA-ALCL, a rare implant-associated cancer, and it should be assessed rather than monitored.
- Infection — accompanied by fever, redness, or heat.
- Ordinary breast changes with hormones, weight or age.
When to be seen promptly
Rupture itself is usually not urgent. These are different:
- Sudden swelling of one breast, particularly years after surgery
- Fever, spreading redness, or heat over the breast
- A new lump in the breast or armpit
- Pain that is worsening rather than fluctuating
Our patient safety pagecovers this in full, including how to report a device failure to the regulator — which is worth doing, because rupture data is known to be under-reported.
If you suspect rupture
Book imaging rather than waiting to see whether it changes. Ultrasound is usually the first test and MRI is used when the result is unclear or symptoms are present. Bring your implant records if you have them — manufacturer, model, and date of surgery — because some manufacturers offer warranty support for confirmed rupture, and the age of the implant matters to interpretation.
Our silent rupture page explains the screening schedule and what each scan involves.
- U.S. Food and Drug Administration. Breast implants: certain labeling recommendations to improve patient communication.
- American Society of Plastic Surgeons. Breast implant safety.