Conclusions
The IOM committee's review of research and medical studies shows a local, but not general, reaction to silicone breast implants.
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There is no evidence that silicone implants are responsible for any major diseases of the whole body. Women are exposed to silicone constantly in their daily lives.
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There is no plausible evidence of a novel autoimmune disease caused by implants.
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The committee found no increase in either primary or recurrent breast cancer in women with breast implants. Some studies even suggest lower rates of breast cancer in implanted women.
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There is no danger in breast-feeding; cows' milk and infant formulas have a far higher level of silicon, a silicone component, than mothers' milk. Breast milk is the best food for babies.
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The major problems with implants are local, but not life-threatening, complications. These include implant removal, ruptures, deflations, capsular contracture, infection, and pain.
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Many women will have secondary problems such as severe contracture, rupture, and implant removal.
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Implants do not last forever; risks accumulate over time, and many women should expect to have more than one implant.
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Some women with breast implants are indeed very ill. However, the committee can find no evidence that these women are sick because of their implants.