I had a lump in my left breast about 7 months ago and i had a mammogram the doctor said it was nothing lately it has enlarged significantly ?

Plz C Breast Surgeon: While a normal mammogram is reassuring, as many as 10% of cancers will not be seen by mammography. Therefore, if you have a palpable lump, you should be seen by a breast surgeon. Using a combination of physical examination, ultrasound, +/- biopsy, they will get to the bottom of this. Don't delay!

Ultrasound: The best test for a palpable mass in the breast is an ultrasound. Even if the mammogram is negative. Hope this helps.

Enlarging lump: Go back to your doctor to get re evaluated. If you feel like you have an enlarging lump, it needs to be addressed despite what the mammo/physical exam showed 7 months ago.