causes of posterior swollen lymph nodes swelling in neck
The posterior cervical lymph nodes receive lymphatic fluid from the neck and the head. When there is an infection in the head, lymph nodes will collect and destroy the bacteria causing the infection. During this process, the lymph nodes may swell indicating that the body has an infection. Additional symptoms include bodily aches, congestion, and fever. An infection in a tooth, throat, upper respiratory tract or a viral infection will also cause swollen posterior cervical lymph nodes. Normally, the swelling disappears after the infection. However, you should see a doctor if lymph nodes remain swollen and accompanying symptoms persist after an infection.