My doctor found 4 masses in my breast and one in my lymph node under my armpit. they have been biopsied could it be cancer?

Maybe: You will need to wait to see what the biopsy result show. There can be non-cancerous causes too, but whenever there are suspicious breast lumps and lymph nodes biopsies are done to make sure they are not cancerous. I wish you the best.

Possibly: Your biopsy answer should come quickly. It's certainly possible that this is a new malignancy. It could also be from a benign cause. Please follow up closely with your doctor!

Yes.: If the doctor had thought that cancer were not a POSSIBILITY, he would not have done a biopsy. So, of course, cancer is a possibility. Only the biopsy will tell you if it's an ACTUALITY. Good luck.