In CLL, the bone marrow produces too many lymphocyte-type white blood cells, which aren’t functioning properly, causing an increased infection risk and persistent tiredness. CLL is different from other types of leukaemia. The cause isn’t clear, there’s no proven link with radiation or chemical exposure, diet or infections. You can’t catch it or pass it on, but it is linked to certain genes. It mostly affects the over 60s, and rarely the under 40s.
It doesn’t usually cause symptoms early on, only being picked up during a routine blood test. However, eventually symptoms develop, such as frequent infections, tiredness, anaemia, breathlessness, bruising and bleeding, fevers and night sweats, swollen glands, abdominal swelling and unexplained weight loss.
Your GP will examine you and arrange blood tests, including a blood count to…
