Lymph nodes are part of the body's immune system that fights infections, and they can swell while fighting infections. Lymph node swelling, can occur for many different reasons.
Lymph nodes filter lymph fluid (fluid that comes from cells in the body and travels through the lymph vessels) to enable the body's immune system to respond to infections, inflammation, and cancer cells.
Causes of Lymph Node Swelling
It's a sign that your body is fighting off infections or illnesses. Some common causes include:
- Infections: The most common cause of swollen lymph nodes is infection. Infections such as colds, flu, ear infections, tonsillitis, tooth infections, skin infections, and HIV can cause swollen lymph nodes.
- Inflammation: Lymph nodes can also swell in inflammatory conditions, such as rheumatoid arthritis, lupus, and Crohn's disease.
- Cancer: Some types of cancer, especially lymphoma and leukemia, can cause swollen lymph nodes.
- Other causes: Certain medications can cause swollen lymph nodes. Allergic reactions and some immune system disorders can also cause swollen lymph nodes.
Resting at home, drinking plenty of water, taking painkillers and anti-inflammatory medications, and applying warm or cold compresses can help relieve symptoms. However, if in doubt, it's important to consult a doctor.
Although it is usually caused by infections, it can sometimes be a sign of more serious conditions. lymph node swelling If it persists, is painful, or continues to grow, consult a healthcare professional.
