Why Is My Submental Lymph Node Swollen?

Swollen lymph nodes on the side of the neck or under jaw: Swollen lymph nodes on the side of the neck or under the jaw are the most common. They may represent an infection around that area, such as a tooth infection or abscess, throat infection, viral illness, or upper respiratory infection.

What causes swollen submental lymph nodes?

A: When a lymph node notices something harmful in the body, it uses its resources to try to destroy it. Inside the lymph nodes are blood cells that fight infection and disease. When the lymph nodes start using them, the gland gets bigger. Colds, sore throats and ear infections all lead to swollen lymph nodes.

What does a swollen submandibular lymph node mean?

Submandibular lymphadenopathy refers to enlarged lymph nodes located beneath the mandible (lower jaw). Hot, swollen, tender, supple lymph nodes usually indicate infection and are accompanied by other symptoms.