Plasma donation is not allowed with moderately abnormal blood rheology tests. Hemorheology refers to the fluidity and deformation patterns of the formed components of blood (red blood cells, white blood cells, platelets, etc.). Abnormalities in plasma components such as plasma albumin and coagulation factors can also affect hemorheology. Patients with moderately abnormal blood rheology may have abnormalities in plasma proteins, coagulation factors and other components, and the plasma of such patients does not meet the criteria for plasma donation. Therefore, people with moderate abnormalities of blood rheology are not allowed to donate plasma. It is recommended that patients with moderate abnormalities of blood rheology should go to the hematology department in time to improve plasma globulin measurement, blood routine, coagulation factor measurement and other related examinations to clarify the specific cause of the disease, and then treat the cause of the disease.