Lymph nodes are small, bean-shaped structures in your body that filter harmful substances. They swell in response to infections like the flu or strep throat, or conditions like ear infections, injuries, or allergies. In rare cases, swollen lymph nodes can signal lymphoma or metastatic cancer.
Seek medical attention if the swelling lasts more than 2-3 weeks, the lumps are hard and immovable, or if you experience unexplained weight loss, fever, or fatigue. For mild infections, warm compresses, over-the-counter pain relievers, and rest can help manage symptoms.
