The so-called leukemia refers to a blood system disease that occurs in the patient's body. Relatively speaking, the main clinical manifestation of leukemia is general weakness. Low-grade fever, night sweats, and easy infection may occur. In the blood system, the main manifestations are abnormalities in the number of white blood cells, an abnormal increase or decrease in the number of white blood cells, and the presence of a large number of immature white blood cells. This is the main manifestation of leukemia. Leukemia is divided into two categories: acute leukemia and chronic leukemia. Also known as blood cancer. The symptoms are mainly due to the suppression of hematopoietic function. Patients may have fever, accompanied by stomach cold, sweating, etc., and are often followed by gum or oral infection. Symptoms of anemia, fatigue, lack of energy, etc. Severe bleeding, petechiae, ecchymoses on the skin, and fundus bleeding can cause visual impairment. Leukemia is a malignant clonal disease of hematopoietic stem cells. Clonal leukemia cells proliferate and accumulate in large quantities in bone marrow and other hematopoietic tissues due to mechanisms such as uncontrolled proliferation, differentiation disorders, and blocked apoptosis, and infiltrate other tissues and organs. At the same time, normal hematopoiesis is inhibited. Clinically, various degrees of anemia, bleeding, infection, fever, liver, spleen, lymph node enlargement and bone pain can be seen. According to reports, the incidence of leukemia in various regions of my country ranks sixth among various tumors.