Pain at the junction of chin and neck can be caused by enlarged lymph nodes, local inflammation, tumors and cysts. 1. Enlarged lymph nodes: there are lymph nodes distributed in the chin and neck, due to the decline of resistance and other factors can lead to reactive hyperplasia and enlargement of the local lymph nodes, which can cause pain symptoms at the junction of the chin and neck. 2. Local inflammation: oral inflammation and tonsil suppuration can cause pain at the junction of chin and neck, accompanied by fever and pain aggravated when swallowing. 3. Tumor: local tumor or nasopharyngeal tumor metastasized to this area can cause pain at the junction of chin and neck. 4. Cysts: localized thyroglossal cysts, sebaceous cysts, etc. can cause pain, and cystic swelling can be touched locally. When the junction of the chin and neck pain should be timely medical treatment, under the guidance of specialists to actively carry out appropriate treatment, will help early relief of pain and other uncomfortable symptoms.