Breast implants are silicone-shelled medical devices placed under breast tissue or chest muscle to increase breast size or restore volume after mastectomy. They typically last 10 to 15 years before needing replacement, require ongoing monitoring, and come with a specific set of risks and maintenance commitments that are worth understanding before surgery.
Saline vs. Silicone Implants
Both types have an outer shell made of silicone. The difference is what’s inside. Saline implants are filled with sterile salt water, usually after they’ve been placed in the body. Silicone implants come pre-filled with a silicone gel that most people feel more closely mimics natural breast tissue.
The FDA sets different age requirements for each. Saline implants are available at age 18 and older for cosmetic augmentation. Silicone implants require you to be at least 22 for cosmetic purposes, though both are available at any age for breast reconstruction after mastectomy or injury.
One practical difference matters a lot: how you’d know if something goes wrong. A ruptured saline implant deflates noticeably because the salt water leaks out and your body absorbs it, changing the breast’s size and shape. A silicone rupture is harder to detect. The gel tends to stay trapped in the surrounding scar tissue, so you may not see or feel any change. This is called a silent rupture, and it’s the reason silicone implants require routine imaging (more on that below). When a silicone rupture does cause symptoms, it typically shows up as breast pain, thickening, or a change in shape.
Where the Implant Sits
Surgeons place implants in one of several positions relative to the chest muscle. The two broad categories are above the muscle (subglandular, between breast tissue and the chest wall) and below or partially below the muscle (submuscular). A third option, subfascial placement, tucks the implant beneath the thin connective tissue covering the muscle.
Placement affects both appearance and long-term outcomes. A five-year follow-up study comparing subfascial and subglandular placement found that subfascial placement produced better scores for breast contour and shape, with 100% of subfascial patients showing minimal scar tissue hardening compared to about 84% in the subglandular group. Subglandular placement also led to more visible implant folds. Under-the-muscle placement generally provides more tissue coverage over the implant, which can look more natural in people with less breast tissue to begin with. It also interferes less with mammograms.
What Recovery Looks Like
The first week is the most uncomfortable. Expect soreness, swelling, and limited arm mobility. Most surgeons recommend sleeping on your back and wearing a supportive surgical bra during this phase. If you have a desk job with no physical demands, returning to work within one to two weeks is realistic for many people.
During weeks two and three, you’ll still need to avoid lifting anything over 10 pounds. That means no grocery bags, no picking up young children, no gym sessions. By weeks four through six, the restriction loosens but heavy lifting is still off the table. Most people can gradually reintroduce strenuous exercise and normal physical activity around the six-week mark. Full settling of the implants, where they drop into a more natural position, can take several months.
Capsular Contracture
Your body naturally forms a thin layer of scar tissue around any implanted device. This is normal and expected. Capsular contracture happens when that scar tissue tightens and hardens around the implant, squeezing it and making the breast feel firm, look distorted, or become painful. It’s the most common complication of breast implant surgery, occurring in roughly 15 to 30% of reconstruction patients. Rates vary depending on the surgical technique and materials used.
Surgeons grade the severity on a four-point Baker scale. Grade I means the breast looks and feels normal. Grade II involves slight firmness but normal appearance. Grade III means the breast is noticeably firm and may look abnormal. Grade IV adds pain to visible distortion. Grades III and IV typically require revision surgery to remove or replace the implant and the hardened capsule.
Breast Implant Illness
Some people with implants report a cluster of whole-body symptoms that has come to be called breast implant illness, or BII. The most commonly reported symptoms are fatigue (reported in about 41% of cases filed with the FDA), joint pain (31%), anxiety (23%), cognitive difficulties often described as “brain fog” (23%), hair loss (20%), depression (17%), rashes (17%), and unexplained weight changes (17%).
BII is not currently recognized as a formal medical diagnosis. There are no specific tests or established criteria to define it, and the medical community hasn’t reached consensus on what causes it. That said, the FDA tracks these reports and takes them seriously, and many patients report improvement after having their implants removed. If you develop unexplained systemic symptoms after augmentation, it’s worth discussing explant surgery as a possibility with your surgeon.
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 surrounding an implant. It has been most closely linked to textured implants. The incidence rate in the U.S. has risen from about 3 cases per 100 million people per year in the early 2000s to roughly 16 cases per 100 million people per year in recent years, according to data published in JAMA Network Open. The absolute risk remains very low, but the trend led to the voluntary recall of certain textured implants in 2019. Symptoms to watch for include persistent swelling, pain, or fluid collection around the implant, especially if it develops years after surgery.
Implants and Mammograms
Breast implants don’t prevent you from getting mammograms, but they do complicate the process. Implants can obscure breast tissue on standard images, so a special technique called implant displacement is used. The technologist pushes the implant back against the chest wall and pulls the breast tissue forward before compressing it. This creates additional views beyond the standard ones, meaning your mammogram appointment will take longer.
The technique makes a meaningful difference in detection. In one study, standard views without displacement missed about 51% of abnormal findings, while displacement views alone missed only about 12%. For implants placed under the muscle, the miss rate with displacement views dropped even further to around 5%. Always tell the scheduling staff that you have implants when booking a mammogram so the facility can allot extra time and ensure technologists experienced with implant displacement are available.
Long-Term Monitoring
If you have silicone implants, the FDA recommends your first screening ultrasound or MRI at 5 to 6 years after surgery, then every 2 to 3 years after that, even if you have no symptoms. This schedule is designed to catch silent ruptures. If you develop symptoms like pain, swelling, or a change in breast shape at any point, or if an ultrasound result is unclear, an MRI is the recommended next step. These imaging appointments are separate from your regular mammograms for breast cancer screening.
Saline implants don’t require the same monitoring schedule because ruptures are immediately obvious from the change in breast size.
Replacement and Revision
Implants are medical devices with a finite lifespan. Most need replacement somewhere in the 10 to 20 year range, with 10 to 15 years being the typical window. There is no formal expiration date stamped on an implant, so the timing depends on how yours hold up and whether your body or circumstances change.
Beyond rupture and capsular contracture, life events can shift the timeline. Pregnancy, breastfeeding, significant weight gain or loss, and natural aging all change breast tissue in ways that may alter how your implants look and feel. Some people choose revision surgery for cosmetic reasons rather than medical ones, opting to change the size or switch implant types. Others have their implants removed entirely without replacement. Any of these is a valid path, and your surgeon can walk you through what each option would look like for your specific situation.
Cost
The average surgeon’s fee for breast augmentation with implants is $4,875, according to the American Society of Plastic Surgeons. That number covers only the surgeon. It doesn’t include anesthesia, the operating facility, medical tests, post-surgery garments, or prescriptions. When you factor those in, the total typically runs higher. Fat grafting augmentation (using liposuction to transfer your own fat) averages $5,719 for the surgeon’s fee alone.
Cosmetic breast augmentation is almost never covered by insurance. Reconstruction after mastectomy is a different story and is federally mandated to be covered. Beyond the initial surgery, budget for the long-term costs: imaging every few years for silicone implants, and eventual replacement surgery a decade or more down the line.