4-Fever
Leukemia and fever are closely linked to one another, and finding extreme alterations in blood cell counts along with fever is usually enough to suspect leukemia and start with diagnostic tests to confirm the diagnosis. In some types of leukemia, such as acute lymphoblastic leukemia, fever is the most predominant symptom with no trace of infection in the body. Thus, fever is very common, but it should not be neglected.
Leukemia patients with fever should be careful and attentive to an unusual bout of high temperature because infections give out the same symptoms, and they can be lethal for these patients.