The first thing you need to do in case of PBC is to make a clear diagnosis, such as megaloblastic anemia, aplastic anemia, leukemia, etc., and treat the cause of the disease under the guidance of your doctor. 1. Megaloblastic anemia: in severe cases, PBC can occur, and it needs to be supplemented with folic acid and vitamin B₁₂ in appropriate amount under the guidance of the doctor. 2. Aplastic anemia: androgens such as testosterone undecanoate can be applied to stimulate hematopoiesis, and granulocyte colony-stimulating factor can be applied to stimulate the proliferation and release of neutrophils when granulocytes are decreased. 3. Leukemia: Pancytopenia can occur, and chemotherapeutic drugs acting in different cycles can be used in combination to kill the diseased cells, such as cytarabine, Zoerythromycin and so on. It is recommended that when the organism has a decrease in the number of blood cells in the whole blood, timely consultation, identify the causes, standardized treatment under the guidance of the doctor, the above drugs need to be used in accordance with the doctor’s instructions.