Difference between armpit fat and axillary breast? (Photo)

While this does have an appearance of axillary breast tissue a formal examination would be necessary to confirm this. 

Thank you for your question and your photo.  It can be difficult to determine from just a photograph the difference between axillary breast tissue and simple excess fat.  This is best determined by direct examination, and possible ultrasound imaging.  Axillary breast is best removed by direct surgical excision, with an incision that hides in the armpit.  Excess fat in this area is often problematic to get rid of by diet and exercise alone - this represents a very common "problem area", even in people who are otherwise quite thin.  Liposuction is an easy and effective means of treating the problem, with minimal recovery time and discomfort.

Thank
you for your question. An examination would be necessary to evaluate
if liposuction alone or liposuction in combination with a skin excision
is needed. Consult with a board certified Plastic Surgeon.
Best Wishes

Thank you for your question and posting appropriate pictures. You do seem to have axillary breast tissue especially if you notice changes in the size at the time of menstural  cycle. This needs to be confirmed by physical examination. If so, you could be excised through a incision in the axillary region.

Hi Aparna - Thanks for your question and sharing the picture. It's hard to say if it is breast tissue or fat but either way this would be best treated with a short surgical procedure to remove the mass, and get rid of the bump. This would likely be a combination of both liposuction and removal of the mass with a tiny incision hidden in the hairline. Best of luck,Dr. Chopra