Chronic lymphadenitis is inflammation or infection of a lymph node for an extended time. Lymph nodes are part of the immune system. This system fights and prevents infections. The lymph node’s job is to filter out unwanted substances, such as bacteria and viruses, and help eliminate them from the body.
Lymph nodes occur in clusters in the neck, armpits, and groin. Chronic lymphadenitis may affect one node, several nodes in one area, or nodes in many areas of the body.
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Lymph nodes normally swell when fighting off an infection. In cases of more serious infection, the swelling may be prolonged. Lymphadenitis is usually caused by an infection that has spread to the lymph nodes from a skin, ear, nose, or eye infection. Other causes of lymphadenitis include:
Chronic lymphadenitis is more common in children younger than 12 years of age. Factors that may increase your chance of developing chronic lymphadenitis include:
You will be asked about your symptoms and medical history. A physical exam will be done.
Testing may include:
The sooner chronic lymphadenitis is treated, the more favorable the outcome, depending on the cause. If you suspect you have this condition, contact your doctor right away.
Treatment of chronic lymphadenitis depends on the cause. Talk with your doctor about the best treatment plan for you. Treatment options include the following:
Medications may be prescribed, such as:
Hot, moist compresses on the lymph nodes can help relieve pain.
Surgery may be necessary to drain pockets of pus if they occur.
To help reduce the chances of chronic lymphadenitis:
Centers for Disease Control and Prevention
Family Doctor—American Academy of Family Physicians
Lymphadenitis. Johns Hopkins Medicine website. Available at: https://www.hopkinsmedicine.org/healthlibrary/conditions/infectious_diseases/lymphadenitis_134,80. Accessed March 26, 2018.
Lymphadenopathy. EBSCO DynaMed Plus website. Available at:http://www.dynamed.com/topics/dmp~AN~T116501/Lymphadenopathy. Updated December 14, 2016. Accessed March 26, 2018.
Last reviewed March 2018 by EBSCO Medical Review Board Marcin Chwistek, MD Last Updated: 5/1/2014