Chronic Lymphocytic Leukaemia: Symptoms and Care

Chronic lymphocytic leukaemia is a cancer of certain white blood cells that can build up in blood, bone marrow and lymph nodes.

It is often called CLL. Its behaviour differs from person to person; some people are monitored before treatment is needed, while others need treatment sooner because of symptoms or blood-test changes.

Some people have no symptoms when CLL is found through a blood test. Persistent fatigue and swollen lymph nodes are common presentations of CLL. Other features can include repeated infections, night sweats, unexplained weight change, fever, fullness below the ribs or breathlessness. These symptoms can also occur with other conditions and should be assessed in context.

CLL begins when a white blood cell develops changes that allow it to survive and multiply when it should not. The exact cause is often not known. It is not something a person can pass to family members through contact.

CLL may remain stable for a time or become more active. Regular review can track symptoms, lymph nodes, blood counts and overall wellbeing. Starting treatment is based on the whole clinical picture rather than on a diagnosis alone.

Age, biological sex and family history can be relevant when clinicians consider CLL, but they do not determine whether a particular person will develop it. Most people cannot identify a specific cause. There is no proven personal action that prevents CLL.

A blood test may show an increased number of lymphocytes. Specialists can examine the blood cells and use further laboratory tests to confirm the diagnosis and understand features that inform monitoring or treatment. Physical examination and selected scans may assess lymph nodes and organs.

Active monitoring may be appropriate when CLL is not causing problems that require treatment. When treatment is indicated, targeted therapy, chemotherapy or other medicines may be considered according to the features of the CLL and your health. Discuss the intended benefit, side effects, interactions and how treatment fits daily life.

Keep scheduled blood tests and report new symptoms or infections promptly. Protecting sleep, staying gently active within your ability, eating regularly and asking for help with fatigue can support daily function. Emotional support is also valuable when living with uncertainty or ongoing monitoring.

CLL and its treatments can affect immune function and blood-cell production. Contact your clinical team promptly for signs of infection, unusual bleeding, increasing breathlessness or a marked change in energy. They can advise on vaccinations, medicine safety and when urgent assessment is needed.

A haematology or oncology team can coordinate monitoring and treatment. Follow-up after cancer treatment remains important for reviewing response, side effects and any new concerns.