In fact, after 20 years of development of medical science and technology and the emergence of new drugs, juvenile leukemia is completely curable, for example, the cure rate of promyelocytic leukemia is now almost 100%, and the cure rate of juvenile lymphocytic leukemia is now 80% in foreign countries, the latest report from Germany. The cure rate of acute lymphoblastic leukemia in adolescents in our country can reach about 70%-80%, which shows that leukemia is completely curable. The reason why leukemia has made so much progress is mainly due to the emergence of new drugs and technological advances, such as arsenic trioxide, which is used in traditional Chinese medicine to treat promyelocytic leukemia, and now the purified arsenic trioxide has made promyelocytic leukemia, which is one of the most difficult leukemias to treat, the most treatable, that is, the most effective and completely curable leukemia. In addition, the improvement of chemotherapy, the emergence of new chemotherapy drugs, as well as the advancement of immunotherapy and Chinese medicine treatment, have also led to a great progress and improvement in the cure rate of leukemia. In addition, hematopoietic stem cell transplantation is now very mature, and the probability of curing leukemia is greatly improved.