What causes swollen lymph nodes in your throat?

There are many potential causes of swollen lymph nodes in the throat, including:

Infection: Swollen lymph nodes are a common sign of infection, such as a sore throat, flu, or ear infection. The lymph nodes help fight infection by filtering out bacteria and viruses from the body. When they are swollen, it is a sign that they are working hard to fight off an infection.

Allergies: Allergies can also cause swollen lymph nodes, especially if the allergen is inhaled or ingested. Common allergens that can cause swollen lymph nodes include pollen, dust mites, and pet dander.

Autoimmune disorders: Autoimmune disorders are conditions in which the body's immune system mistakenly attacks its own tissues. This can cause inflammation and swelling, including in the lymph nodes. Common autoimmune disorders that can cause swollen lymph nodes include lupus, rheumatoid arthritis, and Sjogren's syndrome.

Cancer: Swollen lymph nodes can also be a sign of cancer, particularly if they are persistent and accompanied by other symptoms such as weight loss, fatigue, or fever. However, it is important to note that swollen lymph nodes are more likely to be caused by an infection or other benign condition than by cancer.

Other causes: Other potential causes of swollen lymph nodes in the throat include:

- Certain medications, such as antibiotics, antihistamines, and chemotherapy drugs

- Vaccination

- Trauma to the neck or throat

- Foreign objects lodged in the throat

- Tonsillitis

- Pharyngitis

- Laryngitis

- Epiglottitis

If you have swollen lymph nodes in your throat that are persistent or accompanied by other symptoms, it is important to see a doctor to determine the cause and receive appropriate treatment.