The normal range of D2 polymers is usually 0-0.5 mg/L. D2 polymer is a metabolite of fibrin in the blood circulation, which can be used as a quantitative indicator of thrombolytic effect. The normal range of D2 polymer is slightly different according to the different testing reagents used in each hospital, and you should refer to the normal range of your testing institution. A high D2 polymer value may be associated with thrombotic diseases, commonly found in renal disease, immune rejection, venous thrombosis and other diseases. If the D2 polymerase test result is abnormal, it is necessary to consult a doctor for a clear diagnosis. Most pregnant women have D2 polymerase levels 1-2 times higher than the normal range, which is a normal phenomenon after pregnancy and does not require treatment, as long as regular observation is sufficient. Slightly high D2 polymers can be relieved by consuming more vegetables and fruits and hydrating more.