CLL

Chronic lymphocytic leukemia (CLL) is a type of cancer of the blood and bone marrow — the spongy tissue inside bones where blood cells are made. The term "chronic" in chronic lymphocytic leukemia comes from the fact that this leukemia typically progresses more slowly than other types of leukemia CLL usually develops slowly and progresses slowly, over months and years. Most people have no symptoms of their disease when first diagnosed. In these cases, people often require no treatment for a long time, apart from regular check-ups with their doctor to carefully monitor their health. Others may need to be treated soon after they are diagnosed.

 CLL develops slowly many people don’t have any symptoms, particularly in the early stages, and the disease is picked up during a routine blood test.