Acute B leukemia is formally known as acute B lymphoblastic leukemia, which is a subtype of acute leukemia. Children and adults are treated differently, and the cure rate is also different, with a higher cure rate for children and a lower overall cure rate for adult patients, probably between 20% and 50%. 1. Children: Children’s acute B lymphoblastic leukemia has a high degree of malignancy and rapid progression of the disease, but it is more sensitive to chemotherapeutic drugs, and the treatment effect is significantly better than that of adults, and the cure rate can reach about 80% after standard chemotherapy. The drugs include cyclophosphamide and vincristine. 2. Adults: In adult acute B lymphoblastic leukemia, about 30% of the patients will have the translocation of chromosome 9 and chromosome 22, which is also known as Philadelphia chromosome (+). Patients with chromosomal abnormality are high-risk and have poor prognosis, and the overall cure rate ranges from 20% to 50%. Acute B-lymphoblastic leukemia, must go to the regular hospital for treatment, and keep a positive attitude.