Is it serious to have lymph nodes under the armpit?

Swollen lymph nodes in the armpits cannot be ignored. After all, there are benign and malignant lymph nodes in the armpits. Malignant ones can threaten life, so we should pay attention to understanding the cause, correct prevention, and especially avoid infection.

1. Infection

1. Acute infection

Caused by bacteria, viruses, rickettsia, etc., such as acute cellulitis, upper respiratory tract infection, infectious mononucleosis, scrub typhus, etc.

2. Chronic infection

Bacteria, fungi, worms, chlamydia, spirochete disease, filariasis, venereal granuloma, syphilis, AIDS, etc.

2. Tumor

1. Malignant lymphoma

Hodgkin disease and non-Hodgkin lymphoma.

2. Leukemia

Acute lymphocytic leukemia, acute non-lymphocytic leukemia, chronic lymphocytic leukemia, chronic myeloid leukemia, plasma cell leukemia, etc.

3. Plasma cell tumors

Multiple myeloma, primary macroglobulinemia.

4. Tumor metastasis

Gastric cancer, liver cancer, breast cancer, nasopharyngeal cancer, etc.

3. Reactive hyperplasia

1. Necrotizing hyperplastic lymphadenopathy.

2. Serum sickness and serum sickness-like reactions.

3. Allergic subsepsis.

4. Systemic lupus erythematosus, rheumatism, etc.

4. Histiocytic proliferation and metabolic abnormalities

1. Langerhan's histiocytosis.

2. Lipid storage disease.

3. Sarcoidosis.