Immunoglobulin (immunoglobulin) refers to animal proteins with antibody activity. It is mainly found in blood plasma, but also in other body fluids, tissues and some secretory fluids. Serum immunoglobulin (Ig) includes: IgG, IgA, IgM, IgD, IgE. its normal range: IgG 7, 6 ~ 16, 6 g/L; IgA 0, 71 ~ 3, 35 g/L; IgM 0, 48 ~ 2, 12 g/L; IgD 0, 01 ~ 0, 04 g/L; IgE 0, 001 ~ 0, 009 g/L. Then, chronic liver disease What test items are needed to cause serum immunoglobulin can be elevated? The following is a brief introduction: 1, liver function test: hepatitis activity, generally 2 weeks to check once, after the hepatitis is stable, 2-3 months to recheck once, if found that the body has uncomfortable symptoms should be checked immediately. 2.B ultrasound examination: It can observe the changes of liver, bile and spleen, which is helpful for the early treatment of organic lesions such as cirrhosis and hepatocellular carcinoma, etc. Ultrasound examination can tell whether the liver is gradually shrinking and the spleen is gradually increasing. 3.AFP: This is a marker of liver cancer, and AFP can be significantly increased before the liver mass is detected by ultrasound, CT or MRI, which can detect primary liver cancer in the early stage.