lymph nodes (lymph glands)

nodes or glands spread throughout your body

Your lymph nodes, also called lymph glands, play a big role in how your body fights infections. They work as filters, trapping viruses, bacteria and other causes of illnesses before they can infect other parts of your body. Common areas where you might notice swollen lymph nodes include your neck, under your chin, in your armpits and in your groin.