Syphilis, a sexually transmitted infection.This virus attacks the immune system, making it difficult for the body to fight off infection and some disease. Acquired immunodeficiency syndrome (AIDS), which develops after a person contracts HIV (human immunodeficiency virus).Cancer, such as leukemia, Hodgkin's disease, and non-Hodgkin's lymphoma.Side effects of measles-mumps-rubella (MMR) vaccination.

Side effects of phenytoin (Dilantin), a medicine used to prevent seizures.A bacterial illness, such as strep throat (caused by the streptococcus bacterium) or Lyme disease (a bacterial infection spread by certain types of ticks).Mononucleosis(Epstein-Barr virus), which results in fever, sore throat, and fatigue, or cytomegalovirus (CMV), a viral infection that causes symptoms similar to those of mononucleosis.A viral illness, such as measles, rubella, chickenpox (varicella), or mumps.When lymph nodes swell in two or more areas of the body, it is called generalized lymphadenopathy. What does it mean when lymph nodes swell in two or more areas of the body? Glands above the collarbone (supraclavicular lymph nodes) may swell from an infection or tumour in the areas of the lungs, breasts, neck, or abdomen.Ĭommon sites for swollen lymph nodes include the neck, groin, and underarms.In rare cases, testicular cancer, lymphoma, or melanoma may cause a lump in this area. The lymph nodes in the groin (femoral or inguinal lymph nodes) may swell from an injury or infection in the foot, leg, groin, or genitals.A rare cause of axillary swelling may be breast cancer or lymphoma. Glands in the armpit (axillary lymph nodes) may swell from an injury or infection to the arm or hand.Glands can also swell following an injury, such as a cut or bite, near the gland or when a tumour or infection occurs in the mouth, head, or neck. The glands on either side of the neck, under the jaw, or behind the ears commonly swell when you have a cold or sore throat.Which lymph nodes are swollen can help identify the problem. Lymph nodes often swell in one location when a problem such as an injury, infection, or tumour develops in or near the lymph node. Most lymph nodes in the body cannot be felt. Lymph nodes generally are not tender or painful. Groups of lymph nodes can be felt in the neck, groin, and underarms. And they may be as small as the head of a pin or as large as an olive. Lymph nodes may be found singly or in groups. The lymph nodes filter lymph fluid as it flows through them, trapping bacteria, viruses, and other foreign substances, which are then destroyed by special white blood cells called lymphocytes. The lymph system is an important part of the immune system, the body's defence system against disease. They are part of the lymph system, which carries fluid (lymph fluid), nutrients, and waste material between the body tissues and the bloodstream. Lymph nodes are small, bean-shaped glands throughout the body.

Swollen lymph nodes in armpit