When nodes swell, they are working to filter and heal the body. If you do have cancer, it may spread to lymph nodes near the tumor. For example, in breast cancer, the cancer may spread to the lymph nodes in the armpit — this happened to me. (But again, the nodes may not swell even then). read more
Many forms of cancer occurring within the area drained by the groin lymph nodes will lead to swelling (lymphadenopathy). Lymph node swelling usually occurs due to malignant tumors. Leukemia is the cancer of the body’s blood forming tissues, including bone marrow and lymphatic system. read more
Lymph nodes become swollen usually from bacterial or viral infections. As bacteria or viruses invade the nodes, they harden and inflame, and they can really begin to hurt. With colds and flus, you may note painfully swollen nodes around the throat, under the arms and at the groin. read more