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Why am I having pain from my breast to the armpit?

This Premium Q&A, reviewed and published, features a real conversation between an iCliniq user and a physician.

Patient's Query

Hello doctor,

I am a 30-year-old female who weighs 130 lbs and is 5.3 feet tall. For about 12 days, I have had consistent pain in the outer side of my breast up through my armpit. I have a tingling and slightly numb feeling in my left arm. I did not injure it, as far as I am aware. It started suddenly one morning. There is also a heaviness feeling in that whole area. When I look at the area, there is no physical change that I notice. I do not have lumps in my breast or armpit that I could find.

Please help.

Thank you.

Hi,

Welcome to icliniq.com.

I need to know a few more details about your problem:

  1. Was there a fever before the start of pain?
  2. Any local redness or raised temperature above the area of pain?
  3. Any history of lifting heavy weights or doing excessive gym workouts before the onset of pain?
  4. In these 12 days, is there any improvement, or is the pain the same?
  5. Is pain intermittent or continuous?
  6. How can you grade your pain on a scale of 0 to 10?

Kindly get back with the following answers, so that I can help you better.

Thank you.

Patient's Query

Hello doctor,

Thank you for replying. There has been no redness or raised temperature. I do not really do any heavy lifting. I have a 2-year-old son, and I carry him at times, but I never noticed that it hurt or anything. It has not gotten better or worse, and the pain and tingling are constant. I would say the pain in the breast and armpit is about a 6, but the tingling and slight numbness in the arm do not hurt, just uncomfortable.

Please help.

Thank you.

Hi,

Welcome back to icliniq.com.

From the details that you said, the differential diagnosis would be:

  1. Musculoskeletal pain.
  2. Local breast pathology.

Kindly consult a local physician for breast examination. We may need to perform an ultrasound of the left breast, an EKG, and a basic blood workup to look for the probable reason. I suggest applying a topical analgesic gel or oral Acetaminophen and checking for the response.

  1. The tingling sensation that you feel is all over the left arm or only near the breast and armpit area?
  2. Any history of neck pain?
  3. Is the pain radiating from the neck to the left arm?
  4. Any history of slippage of objects from the left hand involuntarily?

Kindly review with further details, so that I can help you better.

I hope this helps.

Thank you.

Medically reviewed byiCliniq medical review team

Published At August 7, 2017
Reviewed AtDecember 15, 2025

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