What is chronic lymphocytic leukemia?
It can come as quite a shock when you are first diagnosed with chronic lymphocytic leukemia (CLL). You probably have a few questions and concerns. The objective of this information is to give you some background information about this condition and to tell you a bit about what to expect. You play the most important role in your treatment, so it is important that you feel well-informed about your care and understand the steps ahead.

What is leukemia?
Leukemia is a cancer of the bone marrow and blood and it causes an increase in number of certain types of white blood cells.

What is CLL?
CLL is the most common type of leukemia in the western world and usually affects more men than women.

Signs and symptoms
CLL symptoms usually develop over time. Early during the disease, CLL often has little effect on a person’s well-being.

Causes and risk factors
We don’t know what causes CLL, but in recent years, many researchers have devoted themselves to the study of CLL to understand the causes of this form of leukemia.