An eating lymph node swelling may have oral ulcers or gum disease. 1. Mouth ulcers: patients who consume rough food for a long time or do not pay attention to oral hygiene may cause mouth ulcers, which will aggravate the impact on the ulcerated area when eating. When the disease is serious, it will cause inflammation of the lymph nodes in the corresponding area, resulting in lymph node enlargement. 2. Gum disease: When there are diseases such as gingivitis or periapical inflammation, it will cause obvious stimulation to the nerve of the teeth. If not intervened in time, it may also cause the inflammation to spread to the surrounding tissues. Symptoms of swollen lymph nodes may also occur at this time, which may also be accompanied by significant pain symptoms. There may also be other reasons, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, and then give targeted treatment or treatment to avoid delaying the condition.