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Lump in armpit
26F found a small hard lump in my inner labia on 21/10/2026 which has considerably reduced today (24/10/2026) though not fully vanished. My period is due in 5-6 days. And I found a hard movable ( moderately painful when touched harsh) in my right armpit under my axillary breast tissue. I'm freaking out because I've never had a lump there before around my period time. Idk if it's just the anxiety or it's actually a lump. When I arch my arms straight I can't see the lump without touching it. Will this vanish once my period start?
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Dr. Neha Vashisth
Obstetrician
14 yrs exp
Jaipur
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Dr. Ankita Gahlot
Obstetrician
12 yrs exp
Bangalore
Your armpit lump showing up just before your period often comes from breast tissue that extends into the armpit. Many women have this, and it swells with your hormones each cycle. It can also be a lymph node reacting to a small skin issue nearby. Your labial lump shrinking on its own fits a blocked gland or a settling ingrown hair, both common and usually harmless.
Next Steps
Watch both over the next week. See a gynaecologist in person if the armpit lump hasn't shrunk after your period, or if the labial lump hasn't fully gone.
Health Tips
See a doctor sooner if either lump grows quickly, turns red, or you develop fever or pus.
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Disclaimer : The content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding your medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on this website.