Hi Dear! You have suddenly noticed a painless fatty round swelling in your axilla. First of all Don't panic. Soft swelling are generally lipomas, but if you have an axillary waxing history, quite possible to have formed an infected hair follicle or cyst. At your age, carcinoma is very much unlikely

You can have physical consultation with a surgeon or physician so that they can examine you. Along with this axillary node, need to see if there are any other abnormal nodes in other nodal areas. Also sometimes swelling in armpit maybe a part of the axillary tail of breast itself. Breast malignancies are highly unlikely at this age of 21. Need to rule out certain other neoplasms.

Thank you for sharing your concern. A swelling in the armpit that is persisting for 2 months needs medical evaluation. Based on your description, possibilities include: Differentials: • Enlarged lymph node – due to infection, inflammation, or (rarely at your age) lymphoma/breast-related pathology. • Lipoma (fatty lump) – soft, mobile, usually painless. • Sebaceous cyst / epidermal inclusion cyst – can feel round, may become tender if inflamed. • Accessory breast tissue nodule – common in the axilla, may fluctuate with menstrual cycle. • Less common: hidradenitis suppurativa (if recurrent/inflamed), or rarely, a tumor. ⸻ Steps to be taken: 1. Clinical examination by a doctor to assess size, consistency, mobility, and tenderness. 2. Ultrasound of the axilla – to differentiate between lymph node, lipoma, cyst, or other causes. 3. If needed, FNAC (fine-needle aspiration cytology) or biopsy for definitive diagnosis. 4. Breast examination should also be done in parallel, as axillary swellings can be related to breast tissue. 5. If any redness, pain, or fever develops – seek prompt evaluation for possible infection. In young women, such swellings are often benign (lipoma, reactive lymph node, cyst), but since it has persisted for 2 months, you should not ignore it. Please consult a physician/surgeon for a proper check-up and ultrasound