Chronic Lymphocytic Leukemia


Leukemia is a type of cancer that occurs in the blood cells. The cancer occurs when there is uncontrolled growth of cells in the body. There are different types of leukemias, including chronic lymphocytic leukemia (CLL).

Generally, CLL is a slow-growing cancer, so it may not have cancer symptoms for years. In other cases, the cancer can grow rapidly. What happens in Chronic Lymphocytic Leukemia is that many abnormal B lymphocytes are produced, these displace healthy cells in the bone marrow, resulting in a decrease in white blood cells and platelets. As a result of the above, patients experience fatigue, weight loss, and are more prone to getting sick. CLL can also spread to lymph nodes, the liver, and spleen, causing these organs to enlarge.

Signs and Symptoms of Chronic Lymphocytic Leukemia (CLL)

CC-10179 / JUNE 2025

National Comprehensive Cancer Network Guidelines for Patients: Chronic Lymphocytic Leukemia, 2019.

American Cancer Society. Signos y síntomas de la Leucemia Linfocítica Crónica. Disponible en:

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