Elderly people with swollen neck are considered to be related to trauma, infectious factors, tumors of neck organs and so on. 1. Trauma: there are many reasons that lead to neck swelling in the elderly, and most patients with neck swelling are mainly considered to be related to trauma, such as soft tissue injuries in the neck area or cervical vertebrae fracture, which can easily lead to localized skin swelling. 2. Infectious factors: such as lymphadenitis, cellulitis, can also lead to local redness and swelling, need to carry out color ultrasound, blood test to determine. 3. Tumors of the neck organs: lymphoma, thyroid cancer, thyroid cysts, thyroglossal cysts, may also cause neck swelling in the elderly. Neck swelling alone is not enough to diagnose the disease, but may be caused by other factors. It is recommended to consult a doctor to determine the cause of the disease and give targeted treatment.