Bacterial infections can cause swollen lymph nodes and also usually cause pain. There are many causes of enlarged lymph nodes, such as inflammatory lymph node enlargement, tuberculosis lymph node enlargement and tumor lymph node enlargement. Inflammatory lymph node enlargement is more common, which is caused by bacterial infection in the relevant area, resulting in localized lymph node invasion and formation of enlargement, often accompanied by pain symptoms, but the mobility is better, the texture is softer, there is tenderness, and the skin temperature tends to be elevated. For lymph node swelling caused by bacterial infection, the main antibacterial treatment, can use amoxicillin, cefadroxil and other antibiotic drugs, but pay attention to whether the drug allergy. Bacterial infection caused by swollen lymph nodes, should actively cooperate with the doctor to take treatment.