Immuno-coagulation examination is mainly to check the patient’s immune function and coagulation function, including a number of items, and it is recommended to go to regular hospitals for examination. 1. Immune examination mainly includes: antigen and antibody examination: such as hepatitis B two-half, human immunodeficiency virus antibody, etc.; specific proteins: such as C-reactive protein, immunoglobulin, etc.; tumor marker: such as alpha-fetoprotein, carcinoembryonic antigen, etc.; autoantibodies: such as rheumatoid factor anti-nuclear antibody, anti-double-stranded DNA antibody, etc. 2. Coagulation tests mainly include (1) prothrombin time (PT): normal 11-13s, prolonged time may be reduced coagulation factors, common in disseminated intravascular coagulation and other diseases, shortened time may be increased coagulation factors, common in thrombotic diseases. (2) Activated partial thromboplastin time (APTT): normal 35-45s, prolongation may be seen in hemophilia, liver disease, etc.; shortening may be seen in hypercoagulable state. (3) Prothrombin time (TT): normal is 16～18s, prolongation may be seen in lupus erythematosus and other diseases. (4) Fibrinogen (FIB): elevated levels of fibrinogen may be seen in myocardial infarction and other diseases. If there is any problem with the above indexes, you should go to the hospital in time to avoid delaying your condition.