What does anti-β2-glycoprotein 1 antibody mean? Anti-β2-glycoprotein I antibody is a clinical test that is seen in diseases such as antiphospholipid antibody syndrome, and it is also a cause of spontaneous abortion. Anti-β2-glycoprotein 1 antibody is also detected in vascular surgery, such as peripheral vascular, cerebrovascular or heart, lung, kidney and other organs when vascular thrombosis occurs, or sudden stroke, mainly in the case of these diseases, especially vascular thrombotic diseases, these antibodies are also abnormally increased. Its clinical significance lies in the fact that normal individuals have a glycerophospholipid structure, but in the case of disease, these phospholipids are distributed outside the cell membrane and when they bind to β2-glycoprotein 1 in the serum they expose the antigenic site, which then induces the production of a corresponding autoantibody, the anti-anti-β2-glycoprotein 1 antibody. These antibodies are essentially autoimmune diseases, and other indicators should be referred to when treating them, and it is still difficult to make a judgment from this one indicator alone.