Biological therapy, also known as biotherapy or biologic therapy, is a type of treatment that uses living organisms, substances derived from them, or synthetic versions of these substances to fight diseases. It is often used in the treatment of conditions like cancer, autoimmune diseases, and inflammatory disorders. This therapy works by enhancing or restoring the body's natural immune response. The main goal of biological therapy is to target specific pathways or cells involved in disease processes, making it a more precise approach compared to traditional treatments. Common forms include monoclonal antibodies, vaccines, and cell therapies. These treatments can help improve patient outcomes and reduce side effects.