4. Swollen lymph nodes
Leukemia affects the bone marrow’s ability to create healthy blood cells, both white and red. The rapid collection of white blood cells causes deformed white blood cells to collect in the lymph nodes. As a result, a large number of lymphocytes can collect in the lymph nodes in the groin, throat, and armpits.
When this happens, the lymph nodes will become noticeably enlarged and will continue growing larger. They are painless, but they can be felt, and can also often be seen. Though all types of infections can cause swollen lymph nodes, if you have leukemia, the swelling will last for a prolonged period of time.