Swollen Lymph Nodes

What are the causes of swollen lymph nodes?

There are may causes for swollen lymph nodes, sometimes referred to as "swollen glands" (lymphadenopathy or lymphadenitis). In general, lymph nodes become swollen when they are active either due to an infection, inflammation, or cancer.

Infections

Infections are the most common causes of swollen lymph nodes. Common infectious causes of swollen lymph nodes are viral, bacterial, parasites, and fungal. The most common cause of swollen lymph nodes is viral upper respiratory infections such as the common cold.

Viruses

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Reviewed on 2/5/2015

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