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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Could Small Lump Near Left Breast Below The Armpit With History Of Mammogram Being Normal Be Due To Onset Of Periods?

Hello. I'm 42 years old. My mammogram the past 2 years have come back normal. I have my mammo coming up soon. But last night, I discovered a small round lump near my left breast, right outside the edge of the breast on the rib bone below the armpit area. So it is basically underneath the side bra strap. My Dr did a manual check of my breasts on 12/11/13 during my pap smear, and she did not feel any lumps. But last night I discovered this small round lump. I started my period today. Do you think the lump is most likely benign, related to the period, etc?
posted on Sat, 4 Jan 2014
Twitter Sat, 4 Jan 2014 Answered on
Twitter Sat, 4 Jan 2014 Last reviewed on
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General & Family Physician,  's  Response
Hi,
As your mammogram is normal, nothing to worry.
During period time due to some hormonal changes you might be feeling this type of lump due to change in breast tissue.
Again go for breast examination after your period is over.
Ok and take care.
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Could Small Lump Near Left Breast Below The Armpit With History Of Mammogram Being Normal Be Due To Onset Of Periods?

Hi, As your mammogram is normal, nothing to worry. During period time due to some hormonal changes you might be feeling this type of lump due to change in breast tissue. Again go for breast examination after your period is over. Ok and take care.