2 doctors weighed in:
I think there are swollen lymph nodes on each side of my neck for over 2 weeks..What could cause it?
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. Martin Raff
Internal Medicine - Infectious Disease
In brief: Many things
Generally these enlarged nodes are in response to upper respiratory tract infections.
If they remain soft, non-tender, mobile and do not increase in size they should gradually resolve in time. If they are behind the muscle from the angle of the jaw to the area around the notch in your breastbone (sternocleidomastoid) this is generally viral, but all bets are off. Could be anything.

In brief: Many things
Generally these enlarged nodes are in response to upper respiratory tract infections.
If they remain soft, non-tender, mobile and do not increase in size they should gradually resolve in time. If they are behind the muscle from the angle of the jaw to the area around the notch in your breastbone (sternocleidomastoid) this is generally viral, but all bets are off. Could be anything.
Dr. Martin Raff
Dr. Martin Raff
Thank
Get help from a real doctor now
Dr. Adam Smith
Board Certified,
13 years in practice
382K people helped
Continue
107,000 doctors available
Read more answers from doctors