Swollen Lymph Nodes

What are swollen lymph nodes?

Swollen lymph nodes are enlarged lymph nodes, which are very small clusters of immune cells that function as part of the body’s immune system. There are more than 600 lymph nodes throughout the body, but the ones most frequently enlarged or swollen are found in the neck, under the chin, in the armpits, and in the groin.

Swollen lymph nodes are also known as lymphadenitis, lymphadenopathy, swollen nodes, or swollen glands. They can occur in any age group or population, but generally occur most often in children.

Your body relies on the lymphatic system to fight off germs, infections, and abnormal substances such as cancer cells. Lymph nodes are an important part of your body’s immune system. Swollen lymph nodes can result from infection, malignancy and autoimmune disorders.

Swollen lymph nodes due to a viral infection often get better without treatment. However, some infections that are due to bacteria or other pathogens need medical attention. Seek prompt medical care if your lymph nodes have been swollen for more than two weeks, or are red, tender, hard, or irregular feeling, or if swelling is increasing.