It is a blood disease caused by abnormal proliferation of lymphocytes in the body. Lymph is an important part of human immune system, which is produced by bone marrow and lymph nodes. The cause of acute lymphoblastic leukemia is lymphoblastic maturation disorder for unknown reasons, which leads to excessive proliferation, and then suppresses normal bone marrow hematopoietic tissue. The symptoms of acute lymphoblastic leukemia include infection and fever caused by leukopenia, usually accompanied by lymph nodes and liver.
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