A swollen lymph node can be a bit like your body’s version of a red flag: When one of these bean-shaped clusters of immune cells in your neck, armpit, or groin puffs up, it’s typically an indication ...

When the doctors do tests to diagnose cancer, they always check your lymph nodes to see how much it has spread. This information not only helps them figure out how advanced the cancer is but also ...

Swollen lymph nodes are often a sign that your body is fighting an infection. Autoimmune diseases can also cause lymph nodes to swell. Certain medications can lead to swollen lymph nodes, but stopping ...

Allergies occur when your immune system overreacts to allergens like pet dander, pollen, mold, certain foods, or medications. Allergy symptoms may include a runny nose, congestion, coughing, wheezing, ...