High levels of white blood cells along with symptoms like swollen lymph nodes suggest which condition?

The presence of high levels of white blood cells, accompanied by symptoms such as swollen lymph nodes, is indicative of leukemia. This condition involves the overproduction of abnormal white blood cells, which can crowd out healthy blood cells and interfere with normal body functions. The swelling of lymph nodes occurs as the body attempts to fight off what it perceives as an infection or disease, which is characteristic of leukemia due to the uncontrolled growth of these cells.

Anemia, diabetes, and allergies do not present with the same combination of high white blood cell counts and swollen lymph nodes. Anemia primarily deals with a deficiency in red blood cells or hemoglobin, diabetes involves the regulation of blood sugar levels, and allergies are immune responses that typically do not lead to significant elevation in white blood cell counts or swollen lymph nodes to the degree seen in leukemia. Therefore, the combination of these symptoms effectively points towards leukemia as the most likely diagnosis.