Leukemia relies on platelet transfusions, which last 3 to 5 days after each transfusion. If leukemia has been treated with platelet transfusions, the average survival is about 1 year. Platelets have a lifespan of about 5 to 8 days, and usually lose their function in about 5 days. After each platelet transfusion, leukemia patients can generally maintain 2~3 days, and the length of time is also related to their own conditions and whether they are co-infected. If leukemia patients have been relying on platelet transfusion to maintain life, the average survival period is about 1 year. Platelet transfusion does not change the number of leukemia cells in the body, but only replenishes the lowered platelets in the body, so it cannot solve the problem fundamentally. It should be noted that leukemia patients need to establish confidence in treatment and receive regular treatment under the guidance of physicians.