1, patients with aplastic anemia should avoid contact with chemicals, radioactive substances and drugs that cause bone marrow injury or suppression. 2, diet should pay attention to nutrition, less spicy food and no alcohol to avoid bleeding caused by vasodilation. 3.Seriously ill people should rest in bed, while lightly ill people should pay more attention to rest and appropriate indoor and outdoor activities. 4. Pay attention to oral hygiene, brush your teeth with a soft toothbrush after meals and before going to bed. Keep the skin clean, do not overdo it when bathing and scrubbing to avoid subcutaneous bleeding. 5.Prevent colds and flu, you can administer cold and flu vaccine and pneumococcal and hemophilus vaccine, which can prevent bacterial infection. Forbid to go to public places to avoid being infected.