Swollen Glands
Alternate Names : Glands - Swollen, Lymph Nodes - Swollen, Swollen Lymph Nodes
Definition
The term "swollen glands" refers to enlargement of one or more lymph nodes.
In a child, a node is enlarged if it is larger than one centimeter (0.4 inch) in diameter.
See also lymphadenitis and lymphangitis.
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Overview & Considerations
Lymph nodes are glands that play an important part in your body's defense against infection. They produce lymph, which travels throughout your body in the lymph system, and filters impurities in your body.
Common areas where the lymph nodes can be felt (known as palpable nodes) include:
- Groin area (inguinal region)
- Armpit (axilla)
- Neck (there is a chain of lymph nodes on either side of the front of the neck, both sides of the neck, and down each side of the back of the neck)
- Under the jaw and chin
- Behind the ears
- On the back of the head (occiput)
The lymph nodes can become swollen. This generally results from infection, inflammatory conditions, an abscess, or cancer. Other causes of enlarged lymph nodes are extremely rare. By far, the most common cause of lymph node enlargement is infection.
As a rule, when swelling appears suddenly and is painful, it is usually caused by injury or an infection. Enlargement that comes on gradually and painlessly may result from cancer or a tumor.
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