No. No, swollen lymph nodes typically are not related to an injury. They are usually from infection of other inflammatory process.
No. Swollen lymph nodes can result from infections, tumors and from other inflammatory conditions.
No!They are- -associated with infective processes. They are a reaction to infection, part of the immune system. They are always there but enlarge with infection, & many times remain so for a long time. Many times they are there but withyyour neck strain you feel around your neck & head and feel them & think they are new, while the have always been there. .