A lump on the jaw that hurts when pressed is considered to be a possible inflammation of the lymph nodes under the jaw, usually associated with surrounding inflammation. Some patients with skin infections or laryngitis, rhinitis, colds, and especially toothaches can cause swelling of the surrounding lymph nodes and find small, pimple-like lumps under the jaw and jaw, which are more painful when touched and even accompanied by fever. Inflammation does not necessarily mean the whole picture. Some patients have a history of tumor disease or leukemia and other hematological disorders, which may also cause bumps. There are also some patients who usually have chronic lymphadenitis, due to weakness, infection with wind and cold, poor body resistance, so that it becomes acute lymphadenitis, and the swelling that normally can not be touched becomes large bumps. Therefore, we should usually pay attention to our health, exercise more, sleep more, and strengthen nutrition to reduce the inflammation episodes.