What’s going on with the swollen lymph nodes in the armpits even though the mammary glands are fine?

Axillary lymph nodes are not breast-specific lymph nodes. In addition to breast diseases, other inflammatory diseases, tumors and other factors can cause axillary lymph node enlargement.
1. Inflammatory stimulation: when axillary lymph node enlargement is accompanied by redness, swelling, heat and pain, it is considered to be the enlargement of local lymph nodes caused by acute inflammation, such as acute cellulitis.
2. Tumor metastasis: metastasis of thyroid cancer can have painless axillary lymph node enlargement with hardness and poor mobility, and lymph node puncture biopsy can make clear diagnosis.
3. Reactive hyperplasia: some rheumatic immune diseases such as systemic lupus erythematosus, necrotizing proliferative lymphadenitis, nodular disease, etc. can cause axillary lymph node enlargement.
When there is axillary lymph node enlargement, we should be alert to breast-related diseases, and at the same time, we should pay attention to some other diseases, early diagnosis and early treatment.