2 doctors weighed in:

Why do I have swollen lymph nodes?

2 doctors weighed in
Dr. Michael Miller
Wound care

In brief: 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.

In brief: 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.
Dr. Michael Miller
Dr. Michael Miller
Thank
Dr. Ed Friedlander
Pathology

In brief: Many causes

Almost everyone has at least one palpable lymph node in the neck, more if you're had a cold or sore throat recently.
I own a 1/2" scarred node that i let people feel for reassurance. If a node feels rubbery or is fixed to the surrounding structures or last more than a week, it's time to investigate. Nodes around the body warn of infectious mono / acute HIV or a few other infections. Good luck.

In brief: Many causes

Almost everyone has at least one palpable lymph node in the neck, more if you're had a cold or sore throat recently.
I own a 1/2" scarred node that i let people feel for reassurance. If a node feels rubbery or is fixed to the surrounding structures or last more than a week, it's time to investigate. Nodes around the body warn of infectious mono / acute HIV or a few other infections. Good luck.
Dr. Ed Friedlander
Dr. Ed Friedlander
Thank
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