The treatment of acute lymphocytic leukemia is relatively complicated for adults, divided into induction remission, consolidation and intensification, maintenance treatment, the length of treatment varies, the first is induction remission, basically with 1 month, some patients can achieve remission in half a month, the later consolidation and intensification at least half a year, if the residual check is negative for maintenance treatment, maintenance treatment sometimes takes 2-3 years. If the patient belongs to high-risk factors, he can do autologous stem cell transplantation and consolidation for 2-3 courses. Maintenance therapy, such as oral methotrexate and 6-mercaptopurine, is available. Maintenance of acute gonorrhea is more important than maintenance of myeloid leukemia, but residuals should be tested at all times. Allogeneic stem cell transplantation has a lower probability of relapse because allogeneic stem cells have anti-GV-R effect. If it is PH positive acute gonorrhea, because there is targeted therapy, you can take Imatinib drug to maintain the treatment, also to test. So the treatment time is no more than 3-5 years, and the later the treatment, the lower the probability of recurrence.