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 ...

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, ...

The last time you visited your doctor for a sore throat, they may have felt for potential inflammation in your neck. That's ...

The first noticeable symptom of lymphoma is often a painless swollen lymph node in the neck, armpit, or groin, depending on where cancer starts. Early lymphoma symptoms can look like the flu, ...