Swollen lymph nodes are often a sign that your body is fighting an infection. Autoimmune diseases can also cause lymph nodes ...

Add Yahoo as a preferred source to see more of our stories on Google. palau83/Getty Images A swollen lymph node can be a bit like your body’s version of a red flag: When one of these bean-shaped ...

Lymph nodes are small, bean-shaped structures that are part of the lymphatic system. The lymphatic system helps the body fight infection and filter harmful substances. Lymph nodes are present ...