Lymph nodes are part of the lymph system, which carries lymph
fluid, nutrients, and waste material between the body tissues and the
bloodstream. The three most common sites of swollen lymph nodes are the neck, armpit, and groin. The lymph system is also an important part of the immune
system, the body's defense system against disease.
ByHealthwise Staff Primary Medical ReviewerSarah Marshall, MD - Family Medicine Adam Husney, MD - Family Medicine Specialist Medical ReviewerKirtly Jones, MD - Obstetrics and Gynecology
Sarah Marshall, MD - Family Medicine & Adam Husney, MD - Family Medicine & Kirtly Jones, MD - Obstetrics and Gynecology
The Health Encyclopedia contains general health information. Not all treatments or services described are covered benefits for Kaiser Permanente members or offered as services by Kaiser Permanente. For a list of covered benefits, please refer to your Evidence of Coverage or Summary Plan Description. For recommended treatments, please consult with your health care provider.