In rare cases pain under the left armpit that does not go away may be a sign of a cancerous growth including breast cancer. Whether it s throbbing aching or sharp everyone has been in pain.
Hormone replacement therapy hrt.
Pain in left breast and underarm. And that s in addition to the left lung left breast and left kidney which actually sits higher. Large and dense breasts can cause breast pain by stretching ligaments and tissues in the breast. Cancer can cause the lymph nodes under the armpit to swell painfully.
Under and around the left breastbone are the heart spleen stomach pancreas and large intestine. Pain in your armpit could mean that you ve simply strained a muscle which is eased. For the same reason as contraception the hormones taken from hrt can cause breast and underarm pain.
According to the breast cancer foundation breast pain includes any pain inflammation or discomfort in the breast or underarm region and can happen for a variety of different factors. For the most parts the foundation includes breast pain is not a sign of breast cancer. The uncomfortable sensation is a red flag.