The symptoms of acute B-lymphocytic leukemia are: a. Symptoms of anemia. Almost all patients with acute B-lymphocytic leukemia have symptoms of anemia, which manifest as pallor, weakness, dizziness, headache, post-activity panic, chest tightness, tinnitus, and blurred eyes, etc. The more severe the disease is, the more obvious the symptoms of anemia are, and it is one of the reasons why a considerable number of patients visit the clinic. Second, the symptoms of infection. About half of the patients will have fever, some will have a low fever, similar to a cold, and some will have a high fever, with a body temperature over 39 degrees, and accompanied by chills, sweating, etc. Common infections such as pneumonia, oral inflammation, etc. Third, the symptoms of bleeding, manifested as bleeding spots and petechiae on the skin mucosa, some appear bleeding from the nasal cavity and gums. IV. Symptoms of organ infiltration. Most patients with acute B-lymphocytic leukemia will have superficial lymph node enlargement, manifested as swollen lymph nodes in the neck, armpits, groin, etc. Some patients will also have enlarged liver and spleen.