Autoimmune conditions happen when your immune system, usually responsible for protecting you from illness, gets a bit mixed up and start to react against your own healthy tissues. This can cause inflammation and discomfort, can last a long time, and can need ongoing care.
Your immune system is complex with many parts working together. In autoimmunity, some parts become overactive and mistakenly target your own body. This can happen for a mix of reasons like genetics, infections, stress, or even past injuries.