Swollen lymph nodes can be a sign that your body is fighting an infection or, in some cases, a more serious underlying condition. If you are experiencing persistent swelling, pain, or unexplained lumps in the neck, underarms, or groin, timely medical evaluation is important. Dr. S. K. Guptha is a highly experienced specialist in diagnosing and treating conditions related to lymph nodes and blood disorders. With advanced diagnostic techniques and personalized care, Dr. S. K. Guptha ensures accurate evaluation and effective treatment. What Are Swollen Lymph Nodes? Lymph nodes are small, bean-shaped glands that are part of your immune system. They help your body fight infections. Swelling can occur due to: Viral or bacterial infections Throat or ear infections Dental infections Autoimmune diseases Tuberculosis Blood disorders Lymphoma or other cancers While mild swelling often resolves on its own, persistent or painless enlarged lymph nodes lasting more than two weeks should not be ignored.