Serum amyloid is a specific indicator of infectious inflammation, a marker of inflammation in the body that is released during acute stress when a person is infected with inflammation, and usually increases when infected with bacteria, viruses, and pathogenic microorganisms.1. Serum amyloid increases significantly when it is a significant bacterial infectious change, and usually begins to rise after 18 hours of inflammatory infection, and can be determined by applying immunomarker It can be measured by immunostaining and immunoassay. High serum amyloid is significantly more sensitive than elevated knee-reactive protein. 2. High serum amyloid is also associated with acute liver injury, usually in acute hepatitis, acute septic liver injury, and acute cirrhosis.