Leukemia is a malignant tumor of the hematopoietic system characterized by uncontrolled abnormal proliferation of a certain series of blood cells in the bone marrow and infiltration of tissues and organs throughout the body via the blood. Common symptoms: incoherent excitement, stupor, lethargy, mental disorders, increased cranial pressure, personality changes, and impaired consciousness. Examination items: Bone marrow image analysis refers to the final bone marrow image report and conclusion after comprehensive analysis: the degree of bone marrow cell proliferation, bone marrow cell count, granulocyte-red ratio and other items. Blood biochemistry six tests: 1, alanine aminotransferase; 2, creatinine; 3, urea nitrogen; 4, serum glucose; 5, triglyceride; 6, total cholesterol.