Low platelets, 60*10^9/L is not necessarily leukemia. Because low platelets, with a value of 60*10^9/L, can be caused by a variety of reasons, leukemia is only one of the possible causes, and the diagnosis of leukemia is not diagnosed by a decrease in the number of platelets. Clinically, to confirm the diagnosis of leukemia, the first step is to confirm the diagnosis based on the patient’s symptoms, signs and various auxiliary tests. Commonly used auxiliary tests include routine blood tests, which can find out the patient’s white blood cell count, hemoglobin concentration and platelet count. However, the diagnosis of leukemia is mainly based on bone marrow examination, and then the morphology, immunology, cytogenetics, and molecular biology of the patient’s bone marrow cells are checked, i.e., the MICM examination method. Only through this examination method can a clear diagnosis of leukemia be made.