Lymphadenitis is an infection of the lymph nodes that can develop as a complication of certain bacterial, viral or fungal infections

What is lymphadenitis?

Lymph nodes are small structures belonging to the lymphatic system whose function is to filter lymph.

Inside them are numerous white blood cells, cells of the immune system that are essential in the fight against infection.

Sometimes lymph nodes can become inflamed and swollen due to an infection triggered by bacteria, viruses or fungi.

Generally, the lymph nodes that become enlarged, resulting in what is called lymphadenitis, are those located near the site of infection.

The infection can be treated effectively with antibiotics, but it can take weeks or months for the swelling to disappear.

If left untreated, lymphadenitis can degenerate into the formation of abscesses, cellulitis, fistulas or sepsis.

What are the causes of lymphadenitis?

At the root may be infections, e.g. in the skin, caused by bacteria such as streptococci or staphylococci.

Sometimes rarer infections such as tuberculosis or bartonellosis, a disease also known as ‘cat scratch’, can also trigger it.

What are the symptoms of lymphadenitis?

In the case of infection, the skin may become red and sensitive at the sites of lymph nodes, which may be enlarged, painful, hard or, if an abscess has formed, gummy.

How to prevent lymphadenitis?

Maintaining good health and following the rules of proper hygiene help reduce the risk of infections that can degenerate into lymphadenitis.

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Source:

Humanitas