Chronic myeloid leukemia is also known as chronic granulocytic leukemia. There is no data to support the maximum length of time a patient can live, and it is usually calculated using the median survival period, which can reach 10 to 20 years for some patients. The occurrence of chronic granulocytic leukemia may be related to the use of chemotherapeutic drugs, radiation, toxic chemical exposure and other factors. Patients may experience symptoms such as fatigue, low-grade fever, splenomegaly, fundus congestion, nausea, vomiting, coma, anemia and bleeding. With active and effective treatment, the median survival can reach 39 to 47 months, and some patients can reach 10 to 20 years. Specific therapeutic drugs include imatinib, dasatinib and so on. It is recommended that patients go to the hospital in a timely manner to determine their condition through relevant examinations, choose the appropriate treatment under the guidance of the physician, and actively cooperate with the physician in the treatment.