If you took a biology class, you’re probably familiar with lymph nodes. Normally, we don’t pay attention to our lymph nodes unless they become swollen. The question is, when are swollen lymph nodes harmless and when do they indicate a more serious issue?
Lymph nodes are small glands that are located throughout the body that store white blood cells (the cells that kill invading organisms). They can be found in areas such as:
- In the armpits
- Under the jaw
- Above the collarbone
- On either side of the neck
- On either side of the groin
Think of them like security checkpoints. When bacteria, viruses, and abnormal or diseased cells pass through the lymph channels, the lymph nodes detect and prevent them from travelling further. Swollen lymph nodes typically indicate that your body is fighting off an infection or illness by accumulating bacteria and dead cells.
Typically, lymph nodes swell because of infection. Swollen lymph nodes are usually accompanied by other symptoms that include:
- Coughing
- Fatigue
- Fever
- Chills
- Runny nose
- Sweating
In some cases, swollen lymph nodes can indicate more serious conditions, such as immune system disorders or cancer. If you experience persistent swelling or the nodes are not tender, consult a doctor for an assessment.
By Daria Horbal, BSc. Phm.
