What is chronic lymphocytic leukemia?
Chronic lymphocytic leukemia, or CLL, is a type of blood cancer that begins in the bone marrow.
If CLL progresses slowly, a doctor may choose to “watch and wait,” which means closely monitoring a patient’s condition before starting any treatment. Depending on how far CLL has progressed at the time of diagnosis, treatment could be started right away. Though there is no cure for CLL, there are treatment options that may keep it under control.
What causes CLL?
Inside the bone marrow are stem cells, which form many types of normal blood cells in the body, including white blood cells. When the genetic material (DNA) inside a stem cell is damaged in a specific way, CLL can sometimes be the result. This process can cause abnormal white blood cells to develop, and these leukemia, or CLL, cells can multiply uncontrollably. When the CLL cells multiply, they may eventually outnumber the healthy blood cells in the body. Doctors can detect CLL using routine blood tests.
What are some symptoms of CLL?
Some people may be diagnosed with CLL even if they don’t have symptoms. If a blood test comes back with abnormal results—for instance, when the white blood cell count is abnormally high—their doctor may order more tests to help confirm a diagnosis of CLL.
If symptoms are present, people with CLL may feel weak or tired, have swollen lymph nodes (in the neck, underarm, stomach, or groin), and may experience fever, weight loss, night sweats, an enlarged spleen or liver, and infections.