The global autoimmune disease diagnostics market size is expected to reach USD 3.3 billion at a 7.6% CAGR over the forecast period from 2018 to 2023, according to the latest research report from Market Research Future (MRFR). Autoimmune diseases are a growing concern for the healthcare sector. Autoimmune diseases are caused when the body?s immune system starts attacking the body?s own tissue instead of attacking foreign particles such as microbes. Autoimmune diseases are caused by several triggers and can be cured by nullifying the body?s immune system and reducing the activity of the immune system. Thus, immunosuppressants are used to treat autoimmune diseases.