When the human body is invaded by viruses, it can lead to lymphadenitis. Many people also experience lymphadenopathy due to internal heat, but regardless of the cause, lymphadenitis cannot be ignored. The lymphatic system is our immune system, and once invaded by viruses, it can cause various diseases in the body. Today, let's mainly understand how lymphadenitis is caused?
1. Bacterial infection: Acute inflammation in areas such as the mouth and face, often causing swelling of the lower jaw lymph nodes. The swollen lymph nodes have a soft texture and good mobility, and can generally gradually return to normal as the inflammation disappears.
2. Viral infections such as measles and infectious mononucleosis can cause lymph node enlargement. Sometimes lymph node enlargement has important diagnostic value, such as wind rash, which often causes occipital lymph node enlargement.
3. Lymph node tuberculosis: Cervical lymph node enlargement is the most common, some may rupture, while others may not. It is sometimes difficult to distinguish from lymphoma in clinical practice. The diagnosis method is to perform multiple lymph node punctures, smears, and live tissue examinations in multiple locations, and identify the primary lesion of tuberculosis.
4. Lymph node metastasis cancer: This type of lymph node is very hard, non tender, and inactive, especially in patients with gastric cancer and esophageal cancer, where small lymph node enlargement on the clavicle can be felt. Patients with breast cancer should often touch the axillary lymph nodes to determine whether the tumor is metastatic.
5. Leukemia: The lymphadenopathy of this disease is systemic, but most pronounced in the neck, armpits, and groin. In addition to swollen lymph nodes, patients also exhibit symptoms such as anemia, persistent fever, and the presence of a large number of immature cells in the blood and bone marrow.
6. Lymphoma: Lymph node enlargement is more common in the neck. Lymphoma is a tumor that originates from lymph nodes or lymphoid tissue, with some lesions outside of lymph nodes, such as damage to the tonsils, nasopharynx, gastrointestinal tract, spleen, etc.
