Breast Implant Illness

"Breast implant illness" (BII) is a patient-derived term — not a formal medical diagnosis — used to describe a broad collection of symptoms that some people with breast implants believe are related to them. It is one of the most debated and emotionally charged topics in this field, and it deserves a careful, compassionate and honest treatment that neither dismisses people's experiences nor overstates what the science currently shows.

What symptoms are reported?

The symptoms attributed to BII are wide-ranging and non-specific, which is part of what makes the topic so difficult. Commonly reported symptoms include:

• Fatigue and low energy.
• Joint and muscle aches.
• "Brain fog", poor concentration and memory problems.
• Hair loss, skin rashes and dry skin or eyes.
• Headaches, anxiety, sleep disturbance and hormonal-type symptoms.

Because these symptoms are common in the general population and overlap with many other conditions, establishing whether implants are the cause in any individual is genuinely challenging.

What does the evidence say?

The current position of the MHRA is measured and important to understand: there is, at present, no single recognised disease that explains the symptoms some people report, and it has not been established whether there is a causal link between implants and these health problems. In other words, the science is unsettled. This is not the same as saying the symptoms are not real — people's experiences are taken seriously — but it does mean that a clear biological mechanism and a definitive test do not currently exist.

Research is ongoing internationally, and regulators including the MHRA and FDA continue to monitor reports and update guidance. Be cautious of any source — in either direction — that claims the question is definitively settled.

What to do if you think you have BII

If you have implants and are experiencing symptoms you are worried about, a sensible, structured approach helps:

• See your GP. Many of these symptoms have other, treatable causes — thyroid problems, anaemia, vitamin deficiencies, autoimmune conditions, perimenopause, depression and others. It is important these are properly investigated.
• Talk to your surgeon. Discuss your implants, their type and condition, and whether any implant-related problem (such as rupture or contracture) is present.
• Consider the evidence on removal. Some patients report improvement in symptoms after implant removal (explant), sometimes with capsule removal. However, outcomes vary, improvement is not guaranteed, and removal is itself surgery with its own risks and effects on appearance.
• Report your experience. You can report symptoms to the MHRA via the Yellow Card scheme, which helps build the evidence base for everyone.

The question of explant

For patients whose symptoms are significantly affecting their quality of life, removing the implants is a legitimate option to discuss with a qualified surgeon. Some report meaningful improvement afterwards. It is important to go in with realistic expectations: because the causal link is not established, surgeons cannot promise that removal will resolve symptoms, and explant changes the appearance of the breast (often requiring a lift to restore shape). A thoughtful surgeon will discuss the potential benefits and limitations openly rather than guaranteeing a cure.

This is a sensitive topic. If your symptoms are affecting your wellbeing or mental health, please speak with your GP or surgeon, who can help you find the right assessment and support.

Frequently asked questions