The field of medical and biological research known as immunology focuses on the immune system. Our immune system protects us from infection in a number of different ways. When the human immune system is malfunctioning, diseases like autoimmunity, allergies, and cancer can develop. When the immune system assaults the body that it is supposed to defend, autoimmune disorders develop. People with autoimmune disorders have a deficiency in their immune system that prevents it from telling "self" molecules apart from "non-self" or "foreign" molecules. Numerous laboratory tests are available in immunology to identify autoimmune disorders.

The global immunology market is anticipated to grow at a CAGR of 8% between 2021 and 2028, from an estimated value of US$ 91,850 million to US$ 156,378.2 million (2021–2028). Globally North America has the largest share in immunology drug market because of the availability of better reimbursement policies, high potential to invest a huge amount of money in the development of immunology drugs, and due to the advancement of technologies. Moreover, because of the easy accessibility to immunology medications and the high affordability of therapy, Europe is the second largest region in terms of market value.