Rheumatology is a subspecialty in internal medicine that focuses on systemic autoimmune diseases. Autoimmune diseases happen when the body’s natural defense system can’t tell the difference between your own cells and foreign cells, causing the immune system to mistakenly attack structures of your body, like your joints or skin, instead of germs like bacteria and viruses. Through blood tests we can detect autoantibodies, inflammation, and organ involvement/damage. Autoimmune diseases are chronic in nature and can be seen in every age group. Therefore, early diagnosis and treatment to avoid long-term damage from uncontrolled inflammation is essential.