The degree of difficulty in treating aplastic anemia is related to the severity of the disease. Non-severe aplastic anemia is easier to treat than severe aplastic anemia and has a better prognosis. Aplastic anemia is a group of acquired bone marrow failure syndromes of unknown cause, mainly manifested as a decrease in whole blood cells, clinically manifested as anemia, bleeding, infection and other symptoms. According to the patient’s condition, blood picture, bone marrow picture, and prognosis, it is divided into severe and non-severe remittent anemia. 1. For patients with severe remyelination, it is more difficult to be treated. If the patient is younger than 40 years old, allogeneic hematopoietic stem cell transplantation can be performed, which is more complicated, but most of the patients can get long-term survival after hematopoietic stem cell transplantation. 2. For non-severe cataract patients, androgens and immunosuppressants can be applied, such as testosterone undecanoate, cyclosporine, anti-thymocyte globulin, and if infection occurs, anti-infection treatment (levofloxacin) can be applied, and most of the patients can get better. Whether or not reocclusion is curable is related to the severity of one’s condition, and it is recommended that patients go to the hospital in a timely manner for treatment under the guidance of a doctor.