Swelling in the lymph nodes often occurs when your body is fighting an infection. This condition, known as lymphadenopathy, refers to the enlargement of the lymph nodes in areas like the neck, armpits, groin, and abdomen. But what exactly distinguishes lymphadenopathy from lymphadenitis? The following article provides an explanation.
The Difference Between Lymphadenopathy and Lymphadenitis
The human body contains hundreds of small lymph nodes that are typically shaped like kidney beans. These lymph nodes are scattered across various areas, particularly the neck, groin, and underarms.
Lymph nodes primarily serve to filter lymph fluid, which contains waste products created by body tissues and microorganisms. They also play a key role in the immune system, helping the body fight off infections and maintaining overall health.
When you suffer from a viral or bacterial infection, the lymph nodes can become swollen as a response to these pathogens. This swelling is referred to as lymphadenopathy. While this condition may seem similar to lymphadenitis, which also involves swollen lymph nodes due to an infection, there are important differences.
Here’s a breakdown of the differences between lymphadenopathy and lymphadenitis:
Lymphadenopathy
Lymphadenopathy is a common condition where the lymph nodes swell in response to various causes, including injuries, autoimmune diseases, or, most commonly, upper respiratory infections. In cases where an infection is the cause, the swollen lymph nodes typically return to normal size once the infection is resolved.
Infections often cause swelling in the lymph nodes near the affected area. For instance, if you have a sore throat, the lymph nodes in your neck may swell.
When diagnosing lymphadenopathy, doctors assess several factors, such as the size of the swollen nodes, their tenderness to touch, consistency (whether the nodes feel firm or soft), whether they are fixed or movable, and the location of the swelling.
To alleviate the swelling, applying a compress to the swollen nodes and taking appropriate medication for the underlying infection can help.
Lymphadenitis
Lymphadenitis, on the other hand, refers to an infection within one or more lymph nodes that causes them to become enlarged. The infection can be caused by bacteria, viruses, or fungi. Lymphadenitis is typically associated with pain, and the affected lymph nodes often feel harder and more prominent than usual.
The hallmark symptom of lymphadenitis is the swelling of the lymph nodes. Additional symptoms that might arise include:
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Fever
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Tenderness
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Chills
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Nausea
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Redness over the infected lymph node
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Visible swelling above the affected lymph node
Bacterial infections are the most common cause of lymphadenitis, and treatment typically involves antibiotics.
In general, the key differences between lymphadenopathy and lymphadenitis include:
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Lymphadenopathy is not a specific disease but a condition where the lymph nodes enlarge in response to an infection. It can also be caused by other conditions such as autoimmune disorders or even cancer. Lymphadenitis, however, is an infection that specifically affects the lymph nodes.
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Lymphadenopathy does not always cause pain or tenderness, whereas lymphadenitis is usually painful when the affected nodes are touched or pressed.
When to Seek Medical Advice
In many cases, swollen lymph nodes will resolve on their own as the underlying infection improves. However, it’s important to see a doctor if your lymph nodes remain swollen for an extended period. You should consult a doctor if you experience the following:
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Swelling without an obvious cause
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Persistent enlargement over two to four weeks
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Hard, rubbery texture, or immovable nodes when pressed
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Accompanying symptoms such as fever, night sweats, or unexplained weight loss
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Difficulty swallowing or breathing
These symptoms may indicate more serious health issues that require prompt medical attention.
If you have health concerns, consider consulting a healthcare professional or use the Ai Care application for online consultations, available for download on both the App Store and Play Store.
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- dr Hanifa Rahma
John Hopkins Medicine. Lymphadenitis. Available from: https://www.hopkinsmedicine.org/health/conditions-and-diseases/lymphadenitis#
Villines. Z. (2023). Lymphadenitis. Available from: https://www.medicalnewstoday.com/articles/lymphadenitis
Mayo Clinic. Swollen Lymph Nodes. Available from: https://www.mayoclinic.org/diseases-conditions/swollen-lymph-nodes/diagnosis-treatment/drc-20353906
Medline Plus. Lymphadenitis. Available from: https://medlineplus.gov/ency/article/001301.htm