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A member asked:
Is it normal for only one lymph node to be swollen during infection?
A doctor has provided 1 answer
Monitoring Centers: The lymphatic system absorbs/carries things too big to go into the arteries/veins like bacteria eaten by white cells and digested food. A lymph node "tastes" the lymph to see if anything bad is there like bacteria, viruses, cancers, etc. When it detects a problem, it alerts the immune system and enlarges in response. Not feeling others does not mean problems as they may simply be deeper.
Answered 3/22/2020
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