Causes of Swollen Lymph Nodes in Armpit
5. Mononucleosis
Mononucleosis, often shortened to mono, and also sometimes called the kissing disease, is another fairly common disease. It is caused by the Epstein-Barr virus and tends to cause symptoms that are similar to the common cold and the flu. It is one potential cause of swollen lymph nodes in the armpits; however mononucleosis is characterized by swelling of the spleen which is an organ of the lymphatic system.
Mononucleosis is called the kissing disease because that is often how it is spread. It is also sometimes spread through coughs and sneezes, and also by coming into contact with contaminated utensils and glasses. Young children tend to show few, if any, symptoms; meaning it often goes unnoticed.
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