Cause left breast redness, dimpling, little 'pinholes' under breast. nipple no longer gets erect. l breast hotter than r. good mammo 2 mos ago.

Need exam: You should be evaluated by a breast surgeon that works in a "breast center", where collaboration amongst different specialties, along with alternative diagnostic techniques are all available in one location. SInce there could be an infection, I would see someone today. Hope this helps!

Breast symptoms: Unfortunately, a normal or benign mammogram does not exclude cancer with 100% assurity, especially if the breast tissue is dense. If a patient is having NEW unilateral breast symptoms, I would definitely recommend a visit to the doctor and having this checked out.