Chronic lymphatic leukemia is usually able to live from 3 to 10 years without treatment. In order to prolong the survival period, patients are advised to receive regular treatment. Chronic lymphatic leukemia is a slowly progressing malignant hematologic disease that usually leads to symptoms such as fatigue, lethargy, night sweats, and enlarged lymph nodes. If not treated in time, most of the patients will develop serious lymphocyte abnormalities after 3 years, and the disease will lead to bone marrow hematopoietic failure in the later stages of development, which may lead to life-threatening complications such as severe anemia and infections. For chronic lymphatic leukemia patients with milder symptoms, due to the slow progression of the disease, some patients can survive for more than 10 years. For patients suffering from chronic lymphatic leukemia, it is recommended to go to the hospital for relevant treatment in time to avoid serious complications, which will affect the patient’s life expectancy. Therapeutic medication should be administered under the guidance of a physician.