Breast Implant Illness (BII) describes a collection of systemic symptoms that some women experience after breast augmentation or reconstruction with implants. Unlike capsular contracture, which causes localized breast changes, BII affects the whole body, and the symptoms can be wide-ranging, gradual in onset, and difficult to connect to a single cause. Many women who have it spend years being told nothing is wrong.
BII is not yet formally recognized as an official medical diagnosis in standard classification systems, which is part of why those answers are so hard to find. For women whose symptoms began or worsened after implant placement, and who have not found an alternative explanation, BII may be worth exploring with a specialist who takes the condition seriously.