High fibrin polymerization time may be abnormal coagulation function, such as hepatitis, cirrhosis and so on. Fibrin is a very important protein, which is transformed by the coagulation factor fibrinogen, the normal value of fibrinogen is 2~4g/L. When the fibrinogen is reduced, the fibrin polymerization time is high, which indicates that the coagulation time of the body is relatively long. Fibrin polymerization time is common in hepatitis, cirrhosis, etc.; Fibrin polymerization time is common in pregnancy, diabetes, etc. Low fibrin polymerization time is common. After the human body starts the coagulation mechanism under the action of many factors, the fibrinogen will be hydrolyzed, thus forming fibrin monomers. Aggregation of fibrin monomers will turn into fibrin polymers, leading to the formation of blood clots, which play a role in stopping bleeding. The key element in the final stage of coagulation is fibrin, therefore, a normal fibrin polymerization time is an important factor to ensure normal coagulation. If the examination found that the fibrin polymerization time is high, it is recommended to go to the hospital in time to improve the relevant examination, so as to facilitate targeted treatment.