What are the common lymph nodes that may get swollen?
There are many adult lymph nodes in varying parts of the body that may become swollen for different reasons. Many people can usually see swollen lymph nodes on the neck, behind the ear, under the jaw, above the collar bone, under the arms, and around the groin. Swollen lymph nodes on the side of the neck or under jaw are the most common. They may represent an infection around that area, such as a tooth infection or abscess, throat infection, viral illness, or upper respiratory infection. Most of the causes of swollen lymph nodes in this area are benign; however, sometimes, swelling of these lymph nodes may also suggest a cancer in the head and neck area. Swollen lymph nodes behind the ear may correspond to an infection around the scalp or possibly a conjunctival (eye) infection. The lymph nodes in the underarm (axilla) are anatomically important in breast cancer. They are often checked physically in patients undergoing investigation for breast cancer. They also play an important role i
