Breast implant illness (BII), also known as autoimmune/autoinflammatory syndrome induced by adjuvants (ASIA), along with other terms, is a purported condition that is said to affect certain women with breast implants. Its acceptance as a legitimate disease is controversial,^[2][3] but some evidence exists supporting the idea that silicone-based breast implants can trigger autoimmune responses in patients with underlying allergies or autoimmune diseases.^[1] Nonetheless, it remains poorly defined, and its existence has still not been conclusively proven.^[3][4] The idea of BII has existed since the 1960s,^[2] but it has more recently been popularized on social media — particularly among non-experts — a process that may increase fear and anxiety regarding the condition and encourage self-diagnosis.^[4]