As previously observed, more than 80% of the cases are diagnosed by chance. The other patients who see their hematologist usually have the following symptoms: fatigue and, sometimes, temperature or weight loss and enlarged lymph nodes. Blood tests show an elevated white blood cell count and sometimes anaemia (lack of red blood cells) or thrombocytopenia (low platelet count). Other CLL symptoms, such as being more sensitive to mosquito bites, are very rare.