There is a relationship between low platelets and anemia, which is analyzed according to different situations, as follows: 1, bleeding: when platelets are low, the patient is in a state of easy bleeding, and anemia occurs once there is a bleeding wound, bleeding more than once, and the hemostasis time is prolonged; 2, immune hemolysis: that is, Evans syndrome, which is mainly caused by immune diseases and may be combined with reduced platelets; 3, thrombotic thrombocytopenia purpura: many fibrin networks are formed in the patient’s blood vessels, which will cut through the red blood cells, leading to hemolysis and subsequent anemia. Patients who also have a decrease in platelets and red blood cells should be examined by bone puncture, bone marrow smear, bone marrow morphology as well as loss cytology, genetics, chromosomes and other aspects to specifically assess the patient’s disease, such as hematopoietic cell function, whether there are abnormalities in hematopoietic cell function, such as aplastic anemia, acute leukemia, myelodysplastic syndrome, including platelets, red blood cells, white blood cells The patient’s hematopoietic cell function is abnormal.