Lymph nodes: Swollen and tender lymph node certainly can be the manifestation of inflammation or infection. Viral or bacterial could be the caused. Be patient, it may take up to 1-2 weeks before it is gone. However, if it is getting bigger or does not go away after 4 weeks- you definitely should talk to your doctor as further evaluation and a biopsy may be needed.
Answered 9/7/2019
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Monitoring Centers: Lymphatic system absorbs/carries things too big to go into the arteries/veins like bacteria eaten by white cells and digested food. Lymph nodes "taste" the lymph for anything bad like bacteria/viruses/cancers, etc. When it detects a problem, it alerts the immune system and your body reacts. They enlarge in response to the inflammation they create when they react. They shrink when all is well.
Answered 3/13/2020
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