Lymph nodes are part of the body’s immune system. A swollen lymph node in the armpit may be a sign of a bacterial or viral infection, an injury, or a serious health condition, such as cancer. The ...

Swollen lymph nodes often indicate that the lymphatic system is actively fighting off an infection or illness by accumulating bacteria and dead cells. While swollen lymph nodes can result from ...

Swollen lymph nodes, or swollen glands, in the neck may indicate an infection. They can also occur due to a medical condition, such as an immune disorder or, less commonly, cancer. Treatment can ...

Swollen lymph nodes may result from an infection or illness. If symptoms last for a long time or occur with certain other symptoms, you may need medical care. Treatment depends on the cause of the ...