Breast implants are not lifetime devices, and by the 20-year mark, most have undergone significant changes. The shell can weaken and rupture, scar tissue can harden around the implant, and your natural breast tissue thins under the sustained pressure. Roughly one in three people with implants will have already had at least one reoperation within the first 10 years, and complication rates only climb from there.
The Shell Breaks Down Over Time
Every breast implant has a silicone outer shell, whether it’s filled with saline or silicone gel. That shell degrades with years of compression from chest muscles, body movement, and the simple passage of time. The FDA states plainly that the longer you have implants, the greater your chances of developing complications.
For saline implants, the most visible sign of failure is deflation. The shell develops a small tear or the valve weakens, and the saltwater filling leaks out and gets absorbed by your body. In a study tracking saline implant removals over 20 years, implant deflation was the second most common reason for removal, occurring in about 31% of cases. You’ll notice deflation quickly because the affected breast visibly shrinks and looks uneven.
Silicone implant ruptures are harder to detect. Modern silicone gel is cohesive, meaning it tends to hold its shape even when the shell cracks. This is why silicone ruptures are often called “silent.” The gel may stay contained within the scar tissue capsule your body built around the implant, producing no obvious symptoms for years. This is why the FDA recommends imaging with ultrasound or MRI starting 5 to 6 years after surgery and every 2 to 3 years after that, specifically to catch ruptures you can’t feel.
Scar Tissue Hardens Around the Implant
Your body treats every implant as a foreign object and forms a capsule of scar tissue around it. This is normal and expected. The problem is when that capsule tightens and squeezes the implant, a condition called capsular contracture. In mild cases, the breast feels slightly firm. In severe cases (graded Baker III or IV), the breast becomes noticeably hard, misshapen, and painful.
Studies show a cumulative risk of significant capsular contracture rising from about 7% in the first two years to 10% over eight years. That number continues climbing with time. By 20 years, the risk is substantially higher, and contracture is one of the leading reasons people seek implant removal or replacement.
A related change at the 20-year mark is calcification. Your body deposits calcium in the scar tissue capsule, and research examining implants removed after 20 or more years found calcification in every single sample. Earlier studies estimated calcium deposits affect 16 to 25% of removed implants overall, but that number appears to approach 100% in implants that stay in place for two decades. These calcium deposits can show up on mammograms and potentially interfere with breast cancer screening, making it harder to read the images clearly.
Your Natural Breast Tissue Changes
The implant doesn’t just sit passively inside your body. Its weight and the pressure it exerts on surrounding tissue cause measurable thinning of your natural breast tissue over time. Research measuring breast gland volume after augmentation found an average reduction of about 13% within just the first 12 months, and larger implants that create more pressure cause more thinning.
Over 20 years, this tissue atrophy becomes more pronounced. The skin stretches, the breast’s natural glandular tissue compresses, and the implant becomes a larger proportion of the total breast volume. This matters practically if you ever decide to remove your implants without replacing them. Many people find that after two decades, their natural breast tissue has thinned enough that removing the implant leaves a noticeably deflated or drooping appearance, often requiring a breast lift if they want to restore shape.
Reoperation Is Common Well Before 20 Years
The reoperation numbers are striking. About 10% of people with breast implants need a second surgery within 2 years. By 6 to 10 years, that figure reaches roughly 20%. In the FDA’s own long-term core study of one widely used implant line, the reoperation rate hit 28% at 6 years and 36% at 10 years. These reoperations include implant replacement, removal, scar tissue treatment, and corrections for implant shifting or asymmetry.
At 20 years, the majority of people have either already had a revision or are dealing with at least one complication that could warrant one. In the saline implant study tracking removals over two decades, the average time from initial placement to explantation was 12 years. Weight gain leading to size dissatisfaction was the top reason (35%), followed by deflation (31%) and complications from prior surgeries.
Systemic Symptoms and Breast Implant Illness
Some people with long-standing implants report a cluster of whole-body symptoms that has come to be known as breast implant illness, or BII. The FDA has collected over 10,000 reports of systemic symptoms in people with implants. The most commonly reported symptoms are fatigue (41%), joint pain (31%), anxiety (23%), brain fog (23%), hair loss (20%), depression (17%), and rashes (17%).
The average time from implant placement to the start of these symptoms is about 5.6 years, though the range spans from immediately after surgery to over 40 years later. BII is not yet a formal medical diagnosis, and researchers are still working to understand why some people develop these symptoms while others don’t. What is documented is that about 41% of people who reported systemic symptoms eventually had their implants removed, at an average of 9.1 years after the original surgery. Many report improvement after explantation, though individual results vary.
A Rare but Serious Cancer Risk
Breast implant-associated anaplastic large cell lymphoma (BIA-ALCL) is a rare cancer of the immune system, not breast cancer, that develops in the scar tissue capsule surrounding the implant. It has been most strongly linked to textured-surface implants. The FDA has received 1,380 reports of BIA-ALCL worldwide as of mid-2024. The median time from implant placement to diagnosis is 8 years, but cases have been reported anywhere from 0 to 40 years after surgery.
The typical first sign is persistent swelling in one breast caused by fluid buildup around the implant, usually occurring years after the initial surgery. When caught early, BIA-ALCL is highly treatable with implant removal and capsule excision. The overall risk remains low, but it’s a complication that wasn’t widely recognized until relatively recently, and it’s worth being aware of if you’ve had textured implants for many years.
What Monitoring Looks Like at 20 Years
If you’ve had silicone implants for 20 years, regular imaging is important. The current FDA recommendation is ultrasound or MRI every 2 to 3 years to check for silent ruptures. Mammograms are still recommended on the normal schedule for breast cancer screening, but the technician should use specialized views designed to image around the implant.
Pay attention to changes in breast shape, firmness, size, or symmetry. New pain, swelling, or lumps around old implants deserve prompt evaluation. Even if your implants feel fine at 20 years, the structural integrity of the shell, the condition of the surrounding capsule, and the thinning of your natural tissue are all progressing silently. Many plastic surgeons recommend a thorough evaluation at the 10-year mark and more frequent check-ins as implants age beyond that, even in the absence of obvious symptoms.