Swollen lymph nodes
Swelling of the lymph nodes in your armpits, neck, or groin area can be one of the initial symptoms of blood cancer. In a majority of acute leukemia cases, these swollen lymph nodes are painless.
Your lymph nodes contain lymph, which is made up of white blood cells that help your body fight disease and infection. However, when these lymph nodes swell without any other signs (such as pain in the ear or throat), it may be a sign of either leukemia or other types of body cancers such as lymphoma, which originates in the lymph nodes or metastatic melanoma that has spread.
According to the Mayoclinic, it’s normal for the glands in the neck or groin area to swell and go up in size during the periods of bacterial or viral infections. However, if they stayed swollen for keeping growing abnormally, it can be a warning sign that should be checked by an expert.