Acute lymphoblastic leukemia T is more severe. Acute lymphoblastic leukemia is divided into B-cell acute lymphoblastic leukemia and T-cell acute lymphoblastic leukemia. 1. Among acute lymphoblastic leukemias, T-cell type has a lower incidence and B-cell type is more common. the prognosis of T-cell acute lymphoblastic leukemia is generally unsatisfactory, especially in adult patients, and patients will eventually need to undergo bone marrow transplantation. Currently, the main treatment modality is chemotherapy + bone marrow transplantation. Drugs include cyclophosphamide and vincristine. 2. The prognosis of B-type lymphoblastic leukemia is generally better than T-type. Specific treatment drugs include cyclophosphamide, vinblastine, dexamethasone, adriamycin and so on. It should be noted that many patients with acute lymphoblastic leukemia may survive for a long time, and it is recommended that patients establish confidence in treatment and receive regular treatment under the guidance of physicians.